Copyright

Preface

Acknowledgements

Legend for Agency Adoptions

Effective Use of This Code

California Code of Regulations, Title 24

Chapter 1 Administration

Chapter 2 Definitions

Chapter 3 Green Building

Chapter 4 Residential Mandatory Measures

Chapter 5 Nonresidential Mandatory Measures

Division 5.1 PLANNING AND DESIGN

Chapter 6 Referenced Organizations and Standards

Chapter 7 Installer and Special Inspector Qualifications

Chapter 8 Compliance Forms, Worksheets and Reference Material

Appendix A4 Residential Voluntary Measures

Appendix A5 Nonresidential Voluntary Measures

Appendix A6.1 – Voluntary Standards for Health Facilities [OSHPD 1, 2 & 4]

History Note Appendix

Division 5.1 PLANNING AND DESIGN

The provisions of this chapter outline planning, design and development methods that include environmentally responsible site selection, building design, building siting and development to protect, restore and enhance the environmental quality of the site and respect the integrity of adjacent properties.

The following terms are defined in Chapter 2.

CUTOFF LUMINAIRES.

LOW-EMITTING AND FUEL EFFICIENT VEHICLES.

NEIGHBORHOOD ELECTRIC VEHICLE (NEV).

TENANT-OCCUPANTS.

VANPOOL VEHICLE.

ZEV.

(Reserved)

(Reserved)

(Reserved)

Newly constructed projects and additions which disturb less than one acre of land shall prevent the pollution of stormwater runoff from the construction activities through one or more of the following measures:
Comply with a lawfully enacted stormwater management and/or erosion control ordinance.

Prevent the loss of soil through wind or water erosion by implementing an effective combination of erosion and sediment control and good housekeeping BMP.

  1. Soil loss BMP that should be considered for implementation as appropriate for each project include, but are not limited to, the following:

    1. Scheduling construction activity.
    2. Preservation of natural features, vegetation and soil.
    3. Drainage swales or lined ditches to control stormwater flow.
    4. Mulching or hydroseeding to stabilize disturbed soils.
    5. Erosion control to protect slopes.
    6. Protection of storm drain inlets (gravel bags or catch basin inserts).
    7. Perimeter sediment control (perimeter silt fence, fiber rolls).
    8. Sediment trap or sediment basin to retain sediment on site.
    9. Stabilized construction exits.
    10. Wind erosion control.
    11. Other soil loss BMP acceptable to the enforcing agency.
  2. Good housekeeping BMP to manage construction equipment, materials and wastes that should be considered for implementation as appropriate for each project include, but are not limited to, the following:

    1. Material handling and waste management.
    2. Building materials stockpile management.
    3. Management of washout areas (concrete, paints, stucco, etc.).
    4. Control of vehicle/equipment fueling to contractor’s staging area.
    5. Vehicle and equipment cleaning performed off site.
    6. Spill prevention and control.
    7. Other housekeeping BMP acceptable to the enforcing agency.
For buildings within the authority of California Building Standards Commission as specified in Section 103, comply with Section 5.106.4.1. For buildings within the authority of the Division of the State Architect pursuant to Section 105, comply with Section 5.106.4.2.
[BSC-CG] Comply with Sections 5.106.4.1.1 and 5.106.4.1.2; or meet the applicable local ordinance, whichever is stricter.

If the new project or an addition or alteration is anticipated to generate visitor traffic, provide permanently anchored bicycle racks within 200 feet of the visitors’ entrance, readily visible to passers-by, for 5 percent of new visitor motorized vehicle parking spaces being added, with a minimum of one two-bike capacity rack.

Exception: Additions or alterations which add nine or less visitor vehicular parking spaces.

For new buildings with 10 or more tenant-occupants or for additions or alterations that add 10 or more tenant vehicular parking spaces, provide secure bicycle parking for 5 percent of the tenant vehicular parking spaces being added, with a minimum of one space. Acceptable parking facilities shall be convenient from the street and shall meet one of the following:

  1. Covered, lockable enclosures with permanently anchored racks for bicycles;
  2. Lockable bicycle rooms with permanently anchored racks; or
  3. Lockable, permanently anchored bicycle lockers.

Note: Additional information on recommended bicycle accommodations may be obtained from Sacramento Area Bicycle Advocates.

[DSA-SS] For public schools and community colleges, comply with Sections 5.106.4.2.1 and 5.106.4.2.2.
Provide permanently anchored bicycle racks conveniently accessed with a minimum of four two-bike capacity racks per new building.

Provide permanent, secure bicycle parking conveniently accessed with a minimum of two staff bicycle parking spaces per new building. Acceptable bicycle parking facilities shall be convenient from the street or staff parking area and shall meet one of the following:

  1. Covered, lockable enclosures with permanently anchored racks for bicycles;
  2. Lockable bicycle rooms with permanently anchored racks; or
  3. Lockable, permanently anchored bicycle lockers.

In new projects or additions or alterations that add 10 or more vehicular parking spaces, provide designated parking for any combination of low-emitting, fuel-efficient and carpool/van pool vehicles as follows:

TABLE 5.106.5.2
TOTAL NUMBER OF PARKING SPACESNUMBER OF REQUIRED SPACES
0-90
10-251
26-503
51-756
76-1008
101-15011
151-20016
201 and overAt least 8 percent of total

Paint, in the paint used for stall striping, the following characters such that the lower edge of the last word aligns with the end of the stall striping and is visible beneath a parked vehicle:

CLEAN AIR/
VANPOOL/EV

Note: Vehicles bearing Clean Air Vehicle stickers from expired HOV lane programs may be considered eligible for designated parking spaces.

[N] Construction shall comply with Section 5.106.5.3.1 or Section 5.106.5.3.2 to facilitate future installation of electric vehicle supply equipment (EVSE). When EVSE(s) is/are installed, it shall be in accordance with the California Building Code, the California Electrical Code and as follows:

[N] When only a single charging space is required per Table 5.106.5.3.3, a raceway is required to be installed at the time of construction and shall be installed in accordance with the California Electrical Code. Construction plans and specifications shall include, but are not limited to, the following:

  1. The type and location of the EVSE.
  2. A listed raceway capable of accommodating a 208/240-volt dedicated branch circuit.
  3. The raceway shall not be less than trade size 1.”
  4. The raceway shall originate at a service panel or a subpanel serving the area, and shall terminate in close proximity to the proposed location of the charging equipment and into a listed suitable cabinet, box, enclosure or equivalent.
  5. The service panel or subpanel shall have sufficient capacity to accommodate a minimum 40-ampere dedicated branch circuit for the future installation of the EVSE.

[N] When multiple charging spaces are required per Table 5.106.5.3.3 raceway(s) is/are required to be installed at the time of construction and shall be installed in accordance with the California Electrical Code Construction plans and specifications shall include, but are not limited to, the following:

  1. The type and location of the EVSE.
  2. The raceway(s) shall originate at a service panel or a subpanel(s) serving the area, and shall terminate in close proximity to the proposed location of the charging equipment and into listed suitable cabinet(s), box(es), enclosure(s) or equivalent.
  3. Plan design shall be based upon 40-ampere minimum branch circuits.
  4. Electrical calculations shall substantiate the design of the electrical system, to include the rating of equipment and any on-site distribution transformers and have sufficient capacity to simultaneously charge all required EVs at its full rated amperage.
  5. The service panel or subpanel(s) shall have sufficient capacity to accommodate the required number of dedicated branch circuit(s) for the future installation of the EVSE.

[N]Table 5.106.5.3.3 shall be used to determine if single or multiple charging space requirements apply for the future installation of EVSE.

Exceptions: On a case-by-case basis where the local enforcing agency has determined EV charging and infrastructure is not feasible based upon one or more of the following conditions:

  1. Where there is insufficient electrical supply.
  2. Where there is evidence suitable to the local enforcing agency substantiating that additional local utility infrastructure design requirements, directly related to the implementation of Section 5.106.5.3, may adversely impact the construction cost of the project.
TABLE 5.106.5.3.3
TOTAL NUMBER OF ACTUAL PARKING SPACESNUMBER OF REQUIRED EV CHARGING SPACES
0-90
10-251
26-502
51-754
76-1005
101-1507
151-20010
201 and over6 percent of total1
  1. Calculation for spaces shall be rounded up to the nearest whole number.
The service panel or subpanel(s) circuit directory shall identify the reserved overcurrent protective device space(s) for future EV charging as “EV CAPABLE”. The raceway termination location shall be permanently and visibly marked as “EV CAPABLE.”

[N] Future charging spaces qualify as designated parking as described in Section 5.106.5.2 Designated parking for clean air vehicles.

Notes:

  1. The California Department of Transportation adopts and publishes the California Manual on Uniform Traffic Control Devices (California MUTCD) to provide uniform standards and specifications for all official traffic control devices in California. Zero Emission Vehicle Signs and Pavement Markings can be found in the New Policies & Directives number 13-01. www.dot.ca.gov/hq/traffops/policy/13-01.pdf.
  2. See Vehicle Code Section 22511 for EV charging spaces signage in off-street parking facilities and for use of EV charging spaces.
  3. The Governor’s Office of Planning and Research published a Zero-Emission Vehicle Community Readiness Guidebook which provides helpful information for local governments, residents and businesses. www.opr.ca.gov/docs/ZEV_Guidebook.pdf.

[N] Outdoor lighting systems shall be designed and installed to comply with the following:

  1. The minimum requirements in the California Energy Code for Lighting Zones 1-4 as defined in Chapter 10 of the California Administrative Code; and
  2. Backlight, Uplight and Glare (BUG) ratings as defined in IES TM-15-11; and
  3. Allowable BUG ratings not exceeding those shown in Table 5.106.8, or

Comply with a local ordinance lawfully enacted pursuant to Section 101.7, whichever is more stringent.

Exceptions: [N]

  1. Luminaires that qualify as exceptions in Section 140.7 of the California Energy Code
  2. Emergency lighting.
  3. Building facade meeting the requirements in Table 140.7-B of the California Energy Code, Part 6.
  4. Custom lighting features as allowed by the local enforcing agency, as permitted by Section 101.8 Alternate materials, designs and methods of construction.

Note: [N] See also California Building Code, Chapter 12, Section 1205.6 for college campus lighting requirements for parking facilities and walkways.

TABLE 5.106.8 [N]

MAXIMUM ALLOWABLE BACKLIGHT, UPLIGHT AND GLARE (BUG) RATINGS1,2

ALLOWABLE RATINGLIGHTING ZONE 1LIGHTING ZONE 2LIGHTING ZONE 3LIGHTING ZONE 4
Maximum Allowable Backlight Rating3
Luminaire greater than 2 mounting heights (MH) from property lineNo LimitNo LimitNo LimitNo Limit
Luminaire back hemisphere is 1 – 2 MH from property lineB2B3B4B4
Luminaire back hemisphere is 0.5 – 1 MH from property lineB1B2B3B3
Luminaire back hemisphere is less than 0.5 MH from property lineB0B0B1B2
Maximum Allowable Uplight Rating
For area lighting4U0U0U0U0
For all other outdoor lighting, including decorative luminairesU1U2U3U4
Maximum Allowable Glare Rating5
Luminaire greater than 2 MH from property lineG1G2G3G4
Luminaire front hemisphere is 1 – 2 MH from property lineG0G1G1G2
Luminaire front hemisphere is 0.5 – 1 MH from property lineG0G0G1G1
Luminaire back hemisphere is less than 0.5 MH from property lineG0G0G0G1
  1. IESNA Lighting Zones 0 and 5 are not applicable; refer to Lighting Zones as defined in the California Energy Code and Chapter 10 of the California Administrative Code.
  2. For property lines that abut public walkways, bikeways, plazas and parking lots, the property line may be considered to be 5 feet beyond the actual property line for purpose of determining compliance with this section. For property lines that abut public roadways and public transit corridors, the property line may be considered to be the centerline of the public roadway or public transit corridor for the purpose of determining compliance with this section.
  3. If the nearest property line is less than or equal to two mounting heights from the back hemisphere of the luminaire distribution, the applicable reduced Backlight rating shall be met.
  4. General lighting luminaires in areas such as outdoor parking, sales or storage lots shall meet these reduced ratings. Decorative luminaires located in these areas shall meet U-value limits for “all other outdoor lighting.”
  5. If the nearest property line is less than or equal to two mounting heights from the front hemisphere of the luminaire distribution, the applicable reduced Glare rating shall be met.

Construction plans shall indicate how site grading or a drainage system will manage all surface water flows to keep water from entering buildings. Examples of methods to manage surface water include, but are not limited to, the following:

  1. Swales.
  2. Water collection and disposal systems.
  3. French drains.
  4. Water retention gardens.
  5. Other water measures which keep surface water away from buildings and aid in groundwater recharge.

Exception: Additions and alterations not altering the drainage path.

For the purposes of mandatory energy efficiency standards in this code, the California Energy Commission will continue to adopt mandatory building standards.
The provisions of this chapter shall establish the means of conserving water used indoors, outdoors and in wastewater conveyance.

The following terms are defined in Chapter 2.

EVAPOTRANSPIRATION ADJUSTMENT FACTOR (ETAF) [DSA-SS]

FOOTPRINT AREA [DSA-SS]

GRAYWATER.

METERING FAUCET

MODEL WATER EFFICIENT LANDSCAPE

ORDINANCE (MWELO).

POTABLE WATER.

RECYCLED WATER.

SPECIAL LANDSCAPE AREA (SLA). [DSA-SS]

SUBMETER.

Separate submeters or metering devices shall be installed for the uses described in Sections 5.303.1.1 and 5.303.1.2.

Separate submeters shall be installed as follows:

  1. For each individual leased, rented, or other tenant space within the building projected to consume more than 100 gal/day (380 L/day), including, but not limited to, spaces used for laundry or cleaners, restaurant or food service, medical or dental office, laboratory, or beauty salon or barber shop.
  2. Where separate submeters for individual building tenants are unfeasible, for water supplied to the following subsystems:

    1. Makeup water for cooling towers where flow through is greater than 500 gpm (30 L/s).
    2. Makeup water for evaporative coolers greater than 6 gpm (0.04 L/s).
    3. Steam and hot-water boilers with energy input more than 500,000 Btu/h (147 kW).
A separate submeter or metering device shall be provided for any tenant within a new building or within an addition that is projected to consume more than 1,000 gal/day.
Plumbing fixtures (water closets and urinals) and fittings (faucets and showerheads) shall comply with the following:

The effective flush volume of all water closets shall not exceed 1.28 gallons per flush. Tank-type water closets shall be certified to the performance criteria of the U.S. EPA WaterSense Specification for Tank-Type Toilets.

Note: The effective flush volume of dual flush toilets is defined as the composite, average flush volume of two reduced flushes and one full flush.

The effective flush volume of wall-mounted urinals shall not exceed 0.125 gallons per flush.
The effective flush volume of floor-mounted or other urinals shall not exceed 0.5 gallons per flush.
Showerheads shall have a maximum flow rate of not more than 2.0 gallons per minute at 80 psi. Showerheads shall be certified to the performance criteria of the U.S. EPA WaterSense Specification for Showerheads.

When a shower is served by more than one showerhead, the combined flow rate of all showerheads and/or other shower outlets controlled by a single valve shall not exceed 2.0 gallons per minute at 80 psi, or the shower shall be designed to allow only one shower outlet to be in operation at a time.

Note: A hand-held shower shall be considered a showerhead.

Lavatory faucets shall have a maximum flow rate of not more than 0.5 gallons per minute at 60 psi.
Kitchen faucets shall have a maximum flow rate of not more than 1.8 gallons per minute at 60 psi. Kitchen faucets may temporarily increase the flow above the maximum rate, but not to exceed 2.2 gallons per minute at 60 psi, and must default to a maximum flow rate of 1.8 gallons per minute at 60 psi.
Wash fountains shall have a maximum flow rate of not more than 1.8 gallons per minute/20 [rim space (inches) at 60 psi].
Metering faucets shall not deliver more than 0.20 gallons per cycle.

Metering faucets for wash fountains shall have a maximum flow rate of not more than 0.20 gallons per cycle/20 [rim space (inches) at 60 psi].

Note: Where complying faucets are unavailable, aerators or other means may be used to achieve reduction.

Disposers shall either modulate the use of water to no more than 1 gpm when the disposer is not in use (not actively grinding food waste/no-load) or shall automatically shut off after no more than 10 minutes of inactivity. Disposers shall use no more than 8 gpm of water.

Note: This code section does not affect local jurisdiction authority to prohibit or require disposer installation.

For those occupancies within the authority of the California Building Standards Commission as specified in Section 103, the provisions of Sections 5.303.3 and 5.303.4 shall apply to new fixtures in additions or areas of alteration to the building.
Plumbing fixtures and fittings shall be installed in accordance with the California Plumbing Code, and shall meet the applicable standards referenced in Table 1701.1 of the California Plumbing Code and in Chapter 6 of this code.
The provisions of Section 5.304, Outdoor Water Use reference the mandatory Model Water Efficiency Landscape Ordinance (MWELO) contained within Chapter 2.7, Division 2, Title 23, California Code of Regulations.

When water is used for outdoor irrigation for new construction projects with an aggregate landscape area equal to or greater than 500 square feet requiring a building or landscape permit, plan check or design review, one of the following shall apply:

  1. A local water efficient landscape ordinance that is, based on evidence in the record, at least as effective in conserving water as the updated model ordinance adopted by the Department of Water Resources (DWR) per Government Code Section 65595 (c).
  2. The California Department of Water Resources Model Water Efficient Landscape Ordinance (MWELO) commencing with Section 490 of Chapter 2.7, Division 2, Title 23, California Code of Regulations.
Rehabilitated landscape projects with an aggregate landscape area equal to or greater than 2,500 square feet requiring a building or landscape permit, plan check, or design review shall comply with Section 5.304.2, Item 1 or 2.
Any project with an aggregate landscape area of 2,500 square feet or less may comply with the performance requirements of MWELO or conform to the prescriptive compliance measures contained in MWELO’s Appendix D.

For projects using treated or untreated graywater or rainwater captured on site, any lot or parcel within the project that has less than 2,500 square feet of landscape and meets the lot or parcel’s landscape water requirement (Estimated Total Water Use) entirely with treated or untreated graywater or through stored rainwater captured on site is subject only to Appendix D Section (5).

Notes:

  1. DWR’s Model Water Efficient Landscape Ordinance, definitions and supporting documents are available at the following link: http://water.ca.gov/wateruseefficiency/landscapeordinance/
  2. A water budget calculator is available at the following link: http://water.ca.gov/wateruseefficiency/landscapeordinance/
  3. The MWELO prescriptive compliance measure Appendix D may be found at the following link: http://water.ca.gov/wateruseefficiency/landscapeordinance/. In addition, a copy of MWELO Appendix D may be found in Chapter 8 of this code.

For public schools and community colleges, landscape projects as described in Sections 5.304.6.1 and 5.304.6.2 shall comply with the California Department of Water Resources Model Water Efficient Landscape Ordinance (MWELO) commencing with Section 490 of Chapter 2.7, Division 2, Title 23, California Code of Regulations, except that the evapotranspiration adjustment factor (ETAF) shall be 0.65 with an additional water allowance for special landscape areas (SLA) of 0.35.

Exception: Any project with an aggregate landscape area of 2,500 square feet or less may comply with the prescriptive measures contained in Appendix D of the MWELO.

[DSA-SS] New construction projects with an aggregate landscape area equal to or greater than 500 square feet.
[DSA-SS] Rehabilitated landscape projects with an aggregate landscape area equal to or greater than 1,200 square feet.
The provisions of this chapter shall outline means of achieving material conservation and resource efficiency through protection of buildings from exterior moisture, construction waste diversion, employment of techniques to reduce pollution through recycling of materials, and building commissioning or testing and adjusting.

The following terms are defined in Chapter 2.

ADJUST.

BALANCE.

BUILDING COMMISSIONING.

ORGANIC WASTE.

TEST.

Provide a weather-resistant exterior wall and foundation envelope as required by California Building Code Section 1403.2 (Weather Protection) and California Energy Code Section 150, (Mandatory Features and Devices), manufacturer’s installation instructions or local ordinance, whichever is more stringent.
Employ moisture control measures by the following methods.
Design and maintain landscape irrigation systems to prevent spray on structures.
Design exterior entries and/or openings subject to foot traffic or wind-driven rain to prevent water intrusion into buildings as follows:

Primary exterior entries shall be covered to prevent water intrusion by using nonabsorbent floor and wall finishes within at least 2 feet around and perpendicular to such openings plus at least one of the following:

  1. An installed awning at least 4 feet in depth.
  2. The door is protected by a roof overhang at least 4 feet in depth.
  3. The door is recessed at least 4 feet.
  4. Other methods which provide equivalent protection.
Install flashings integrated with a drainage plane.
Recycle and/or salvage for reuse a minimum of 65 percent of the nonhazardous construction and demolition waste in accordance with Section 5.408.1.1, 5.408.1.2 or 5.408.1.3; or meet a local construction and demolition waste management ordinance, whichever is more stringent.

Where a local jurisdiction does not have a construction and demolition waste management ordinance that is more stringent, submit a construction waste management plan that

  1. Identifies the construction and demolition waste materials to be diverted from disposal by efficient usage, recycling, reuse on the project or salvage for future use or sale.
  2. Determines if construction and demolition waste materials will be sorted on-site (source-separated) or bulk mixed (single stream).
  3. Identifies diversion facilities where construction and demolition waste material collected will be taken.
  4. Specifies that the amount of construction and demolition waste materials diverted shall be calculated by weight or volume, but not by both.

Utilize a waste management company that can provide verifiable documentation that the percentage of construction and demolition waste material diverted from the landfill complies with this section.

Note: The owner or contractor shall make the determination if the construction and demolition waste material will be diverted by a waste management company.

Exceptions to Sections 5.408.1.1 and 5.408.1.2:

  1. Excavated soil and land-clearing debris.
  2. Alternate waste reduction methods developed by working with local agencies if diversion or recycle facilities capable of compliance with this item do not exist.
  3. Demolition waste meeting local ordinance or calculated in consideration of local recycling facilities and markets.
The combined weight of new construction disposal that does not exceed two pounds per square foot of building area may be deemed to meet the 65 percent minimum requirement as approved by the enforcing agency.

Documentation shall be provided to the enforcing agency which demonstrates compliance with Sections 5.408.1.1 through 5.408.1.3. The waste management plan shall be updated as necessary and shall be accessible during construction for examination by the enforcing agency.

Notes:

  1. Sample forms found in “A Guide to the California Green Building Standards Code (Nonresidential)” located at http://www.bsc.ca.gov/Home/CAL-Green.aspx may be used to assist in documenting compliance with the waste management plan.
  2. Mixed construction and demolition debris (C&D) processors can be located at the California Department of Resources Recycling and Recovery (CalRecycle).

Additions and alterations to a building or tenant space that meet the scoping provisions in Section 301.3 for nonresidential additions and alterations, shall require verification that Universal Waste items such as fluorescent lamps and ballast and mercury containing thermostats as well as other California prohibited Universal Waste materials are disposed of properly and are diverted from landfills. A list of prohibited Universal Waste materials shall be included in the construction documents.

Note: Refer to the Universal Waste Rule link at: http://www.dtsc.ca.gov/LawsRegsPolicies/Regs/upload/OEARA_REGS_UWR_FinalText.pdf

100 percent of trees, stumps, rocks and associated vegetation and soils resulting primarily from land clearing shall be reused or recycled. For a phased project, such material may be stockpiled on site until the storage site is developed.

Exception: Reuse, either on-or off-site, of vegetation or soil contaminated by disease or pest infestation.

Notes:

  1. If contamination by disease or pest infestation is suspected, contact the County Agricultural Commissioner and follow its direction for recycling or disposal of the material. (www.cdfa.ca.gov/exec/county/county_contacts.html)
  2. For a map of known pest and/or disease quarantine zones, consult with the California Department of Food and Agriculture. (www.cdfa.ca.gov)

Provide readily accessible areas that serve the entire building and are identified for the depositing, storage and collection of non-hazardous materials for recycling, including (at a minimum) paper, corrugated cardboard, glass, plastics, organic waste, and metals or meet a lawfully enacted local recycling ordinance, if more restrictive.

Exception: Rural jurisdictions that meet and apply for the exemption in Public Resources Code 42649.82 (a)(2)(A) et seq. shall also be exempt from the organic waste portion of this section.

All additions conducted within a 12-month period under single or multiple permits, resulting in an increase of 30 percent or more in floor area, shall provide recycling areas on site.

Exception: Additions within a tenant space resulting in less than a 30-percent increase in the tenant space floor area.

Space allocation for recycling areas shall comply with Chapter 18, Part 3, Division 30 of the Public Resources Code. Chapter 18 is known as the California Solid Waste Reuse and Recycling Access Act of 1991 (Act).

Note: A sample ordinance for use by local agencies may be found in Appendix A of the document at the CalRecycle’s web site.

[N] For new buildings 10,000 square feet and over, building commissioning shall be included in the design and construction processes of the building project to verify that the building systems and components meet the owner’s or owner representative’s project requirements. Commissioning shall be performed in accordance with this section by trained personnel with experience on projects of comparable size and complexity. All occupancies other than I-occupancies and L-occupancies shall comply with the California Energy Code as prescribed in California Energy Code Section 120.8. For I-occupancies that are not regulated by OSHPD or for I-occupancies and L-occupancies that are not regulated by the California Energy Code Section 100.0 Scope, all requirements in Sections 5.410.2 through 5.410.2.6 shall apply.

Commissioning requirements shall include:

  1. Owner’s or owner representative’s project requirements.
  2. Basis of design.
  3. Commissioning measures shown in the construction documents.
  4. Commissioning plan.
  5. Functional performance testing.
  6. Documentation and training.
  7. Commissioning report.

Exceptions:

  1. Unconditioned warehouses of any size.
  2. Areas less than 10,000 square feet used for offices or other conditioned accessory spaces within unconditioned warehouses.
  3. Tenant improvements less than 10,000 square feet as described in Section 303.1.1.
  4. Open parking garages of any size, or open parking garage areas, of any size, within a structure.

Note: For the purposes of this section, unconditioned shall mean a building, area, or room which does not provide heating and or air conditioning.

Informational Notes:

  1. IAS AC 476 is an accreditation criteria for organizations providing training and/or certification of commissioning personnel. AC 476 is available to the Authority Having Jurisdiction as a reference for qualifications of commissioning personnel. AC 476 does not certify individuals to conduct functional performance tests or to adjust and balance systems.
  2. Functional performance testing for heating, ventilation, air conditioning systems and lighting controls must be performed in compliance with the California Energy Code.

[N] The expectations and requirements of the building appropriate to its phase shall be documented before the design phase of the project begins. This documentation shall include the following:

  1. Environmental and sustainability goals.
  2. Energy efficiency goals.
  3. Indoor environmental quality requirements.
  4. Project program, including facility functions and hours of operation, and need for after hours operation.
  5. Equipment and systems expectations.
  6. Building occupant and operation and maintenance (O&M) personnel expectations.

[N] A written explanation of how the design of the building systems meets the OPR shall be completed at the design phase of the building project. The Basis of Design document shall cover the following systems:

  1. Heating, ventilation, air conditioning [HVAC) systems and controls.
  2. Indoor lighting system and controls.
  3. Water heating system.
  4. Renewable energy systems.
  5. Landscape irrigation systems.
  6. Water reuse systems.

[N] Prior to permit issuance a commissioning plan shall be completed to document how the project will be commissioned. The commissioning plan shall include the following:

  1. General project information.
  2. Commissioning goals.
  3. Systems to be commissioned. Plans to test systems and components shall include:

    1. An explanation of the original design intent.
    2. Equipment and systems to be tested, including the extent of tests.
    3. Functions to be tested.
    4. Conditions under which the test shall be performed.
    5. Measurable criteria for acceptable performance.
  4. Commissioning team information.
  5. Commissioning process activities, schedules and responsibilities. Plans for the completion of commissioning shall be included.
[N] Functional performance tests shall demonstrate the correct installation and operation of each component, system and system- to-system interface in accordance with the approved plans and specifications. Functional performance testing reports shall contain information addressing each of the building components tested, the testing methods utilized, and include any readings and adjustments made.
[N] A systems manual and systems operations training are required, including Occupational Safety and Health Act (OSHA) requirements in California Code of Regulations (CCR), Title 8, Section 5142, and other related regulations.

[N] Documentation of the operational aspects of the building shall be completed within the systems manual and delivered to the building owner or representative. The systems manual shall include the following:

  1. Site information, including facility description, history and current requirements.
  2. Site contact information.
  3. Basic operations and maintenance, including general site operating procedures, basic troubleshooting, recommended maintenance requirements, site events log.
  4. Major systems.
  5. Site equipment inventory and maintenance notes.
  6. A copy of verifications required by the enforcing agency or this code.
  7. Other resources and documentation, if applicable.

[N] A program for training of the appropriate maintenance staff for each equipment type and/or system shall be developed and documented in the commissioning report and shall include the following:

  1. System/equipment overview (what it is, what it does and with what other systems and/or equipment it interfaces).
  2. Review and demonstration of servicing/preventive maintenance.
  3. Review of the information in the systems manual.
  4. Review of the record drawings on the system/ equipment.
[N] A report of commissioning process activities undertaken through the design and construction phases of the building project shall be completed and provided to the owner or representative.
Testing and adjusting of systems shall be required for new buildings less than 10,000 square feet or new systems to serve an addition or alteration subject to Section 303.1.

Develop a written plan of procedures for testing and adjusting systems. Systems to be included for testing and adjusting shall include, as applicable to the project:

  1. HVAC systems and controls.
  2. Indoor and outdoor lighting and controls.
  3. Water heating systems.
  4. Renewable energy systems.
  5. Landscape irrigation systems.
  6. Water reuse systems.
Perform testing and adjusting procedures in accordance with manufacturer’s specifications and applicable standards on each system.
In addition to testing and adjusting, before a new space-conditioning system serving a building or space is operated for normal use, balance the system in accordance with the procedures defined by the Testing Adjusting and Balancing Bureau National Standards; the National Environmental Balancing Bureau Procedural Standards; Associated Air Balance Council National Standards or as approved by the enforcing agency.
After completion of testing, adjusting and balancing, provide a final report of testing signed by the individual responsible for performing these services.
Provide the building owner or representative with detailed operating and maintenance instructions and copies of guaranties/warranties for each system. O & M instructions shall be consistent with OSHA requirements in CCR, Title 8, Section 5142, and other related regulations.
Include a copy of all inspection verifications and reports required by the enforcing agency.
The provisions of this chapter shall outline means of reducing the quantity of air contaminants that are odorous, irritating, and/or harmful to the comfort and well-being of a building’s installers, occupants and neighbors.

The following terms are defined in Chapter 2.

ARTERIAL HIGHWAY.

A-WEIGHTED SOUND LEVEL (dBA).

1 BTU/HOUR.

COMMUNITY NOISE EQUIVALENT LEVEL (CNEL).

COMPOSITE WOOD PRODUCTS.

DAY-NIGHT AVERAGE SOUND LEVEL (Ldn).

DECIBEL (dB).

ENERGY EQUIVALENT (NOISE) LEVEL (Leq).

EXPRESSWAY.

FREEWAY.

GLOBAL WARMING POTENTIAL (GWP).

GLOBAL WARMING POTENTIAL VALUE (GWP VALUE).

HIGH-GWP REFRIGERANT.

LONG RADIUS ELBOW.

LOW-GWP REFRIGERANT.

MERV.

MAXIMUM INCREMENTAL REACTIVITY (MIR).

PRODUCT-WEIGHTED MIR (PWMIR).

PSIG.

REACTIVE ORGANIC COMPOUND (ROC).

SCHRADER ACCESS VALVES.

SHORT RADIUS ELBOW.

SUPERMARKET.

VOC.

Install only a direct-vent sealed-combustion gas or sealed wood-burning fireplace, or a sealed wood-stove or pellet stove, and refer to residential requirements in the California Energy Code, Title 24, Part 6, Subchapter 7, Section 150. Woodstoves, pellet stoves and fireplaces shall comply with applicable local ordinances.
Woodstove and pellet stoves shall comply with U.S. EPA New Source Performance Standards (NSPS) emission limits as applicable, and shall have a permanent label indicating they are certified to meet the emission limits.
The permanent HVAC system shall only be used during construction if necessary to condition the building or areas of addition or alteration within the required temperature range for material and equipment installation. If the HVAC system is used during construction, use return air filters with a Minimum Efficiency Reporting Value (MERV) of 8, based on ASHRAE 52.2-1999, or an average efficiency of 30 percent based on ASHRAE 52.1-1992. Replace all filters immediately prior to occupancy, or, if the building is occupied during alteration, at the conclusion of construction.
At the time of rough installation and during storage on the construction site until final startup of the heating, cooling and ventilating equipment, all duct and other related air distribution component openings shall be covered with tape, plastic, sheetmetal or other methods acceptable to the enforcing agency to reduce the amount of dust, water and debris which may enter the system.
Finish materials shall comply with Sections 5.504.4.1 through 5.504.4.6.

Adhesives, sealants, and caulks used on the project shall meet the requirements of the following standards:

  1. Adhesives, adhesive bonding primers, adhesive primers, sealants, sealant primers and caulks shall comply with local or regional air pollution control or air quality management district rules where applicable, or SCAQMD Rule 1168 VOC limits, as shown in Tables 5.504.4.1 and 5.504.4.2. Such products also shall comply with the Rule 1168 prohibition on the use of certain toxic compounds (chloroform, ethylene dichloride, methylene chloride, perchloroethylene and trichloroethylene), except for aerosol products as specified in subsection 2, below.
  2. Aerosol adhesives, and smaller unit sizes of adhesives, and sealant or caulking compounds (in units of product, less packaging, which do not weigh more than one pound and do not consist of more than 16 fluid ounces) shall comply with statewide VOC standards and other requirements, including prohibitions on use of certain toxic compounds, of California Code of Regulations, Title 17, commencing with Section 94507.

TABLE 5.504.4.1

ADHESIVE VOC LIMIT1,2 Less Water and Less Exempt Compounds in Grams Per Liter

ARCHITECTURAL APPLICATIONSCURRENT VOC LIMIT
Indoor carpet adhesives50
Carpet pad adhesives50
Outdoor carpet adhesives150
Wood flooring adhesive100
Rubber floor adhesives60
Subfloor adhesives50
Ceramic tile adhesives65
VCT and asphalt tile adhesives50
Drywall and panel adhesives50
Cove base adhesives50
Multipurpose construction adhesives70
Structural glazing adhesives100
Single-ply roof membrane adhesives250
Other adhesive not specifically listed50
SPECIALTY APPLICATIONS
PVC welding510
CPVC welding490
ABS welding325
Plastic cement welding250
Adhesive primer for plastic550
Contact adhesive80
Special purpose contact adhesive250
Structural wood member adhesive140
Top and trim adhesive250
SUBSTRATE SPECIFIC APPLICATIONS
Metal to metal30
Plastic foams50
Porous material (except wood)50
Wood30
Fiberglass80
  1. If an adhesive is used to bond dissimilar substrates together the adhesive with the highest VOC content shall be allowed.
  2. For additional information regarding methods to measure the VOC content specified in this table, see South Coast Air Quality Management District Rule 1168, http://www.arb.ca.gov/DRDB/SC/CURHTML/R1168.PDF.

TABLE 5.504.4.2

SEALANT VOC LIMIT Less Water and Less Exempt Compounds in Grams per Liter

SEALANTSCURRENT VOC LIMIT
Architectural250
Marine deck760
Nonmembrane roof300
Roadway250
Single-ply roof membrane450
Other420
SEALANT PRIMERS
Architectural
Nonporous250
Porous775
Modified bituminous500
Marine deck760
Other750

Note: For additional information regarding methods to measure the VOC content specified in these tables, see South Coast Air Quality Management District Rule 1168.

Architectural paints and coatings shall comply with VOC limits in Table 1 of the ARB Architectural Coatings Suggested Control Measure, as shown in Table 5.504.4.3, unless more stringent local limits apply. The VOC content limit for coatings that do not meet the definitions for the specialty coatings categories listed in Table 5.504.4.3 shall be determined by classifying the coating as a Flat, Nonflat or Nonflat-High Gloss coating, based on its gloss, as defined in Subsections 4.21, 4.36 and 4.37 of the 2007 California Air Resources Board Suggested Control Measure, and the corresponding Flat, Nonflat or Nonflat-High Gloss VOC limit in Table 5.504.4.3 shall apply.

TABLE 5.504.4.3

VOC CONTENT LIMITS FOR ARCHITECTURAL COATINGS2, 3 Grams of VOC per Liter of Coating, Less Water and Less Exempt Compounds

COATING CATEGORYCURENT LIMIT
Flat coatings50
Nonflat coatings100
Nonflat-high gloss coatings150
SPECIALTY COATINGS
Aluminum roof coatings400
Basement specialty coatings400
Bituminous roof coatings50
Bituminous roof primers350
Bond breakers350
Concrete curing compounds350
Concrete/masonry sealers100
Driveway sealers50
Dry fog coatings150
Faux finishing coatings350
Fire resistive coatings350
Floor coatings100
Form-release compounds250
Graphic arts coatings (sign paints)500
High temperature coatings420
Industrial maintenance coatings250
Low solids coatings1120
Magnesite cement coatings450
Mastic texture coatings100
Metallic pigmented coatings500
Multicolor coatings250
Pretreatment wash primers420
Primers, sealers, and undercoaters100
Reactive penetrating sealers350
Recycled coatings250
Roof coatings50
Rust preventative coatings250
Shellacs
Clear730
Opaque550
Specialty primers, sealers and undercoaters100
Stains250
Stone consolidants450
Swimming pool coatings340
Traffic marking coatings100
Tub and tile refinish coatings420
Waterproofing membranes250
Wood coatings275
Wood preservatives350
Zinc-rich primers340
  1. Grams of VOC per liter of coating, including water and including exempt compounds.
  2. The specified limits remain in effect unless revised limits are listed in subsequent columns in the table.
  3. Values in this table are derived from those specified by the California Air Resources Board, Architectural Coatings Suggested Control Measure, February 1, 2008. More information is available from the Air Resources Board.
Aerosol paints and coatings shall meet the PWMIR Limits for ROC in Section 94522(a)(3) and other requirements, including prohibitions on use of certain toxic compounds and ozone depleting substances, in Sections 94522(c)(2) and (d)(2) of California Code of Regulations, Title 17, commencing with Section 94520; and in areas under the jurisdiction of the Bay Area Air Quality Management District additionally comply with the percent VOC by weight of product limits of Regulation 8 Rule 49.

Verification of compliance with this section shall be provided at the request of the enforcing agency. Documentation may include, but is not limited to, the following:

  1. Manufacturer’s product specification
  2. Field verification of on-site product containers

All carpet installed in the building interior shall meet at least one of the following testing and product requirements:

  1. Carpet and Rug Institute’s Green Label Plus Program;
  2. Compliant with the VOC-emission limits and testing requirements specified in the California Department of Public Health Standard Method for the Testing and Evaluation of Volatile Organic Chemical Emissions from Indoor Sources Using Environmental Chambers, Version 1.1, February 2010 (also known as CDPH Standard Method V1.1 or Specification 01350);
  3. NSF/ANSI 140 at the Gold level or higher;
  4. Scientific Certifications Systems Sustainable Choice; or
  5. Compliant with the Collaborative for High Performance Schools California (CA-CHPS) Criteria Interpretation for EQ 7.0 and EQ 7.1 (formerly EQ 2.2) dated July 2012 and listed in the CHPS High Performance Product Database.
All carpet cushion installed in the building interior shall meet the requirements of the Carpet and Rug Institute’s Green Label program.
All carpet adhesive shall meet the requirements of Table 5.504.4.1.

Hardwood plywood, particleboard and medium density fiberboard composite wood products used on the interior or exterior of the building shall meet the requirements for formaldehyde as specified in ARB’s Air Toxics Control Measure (ATCM) for Composite Wood (17 CCR 93120 et seq.) Those materials not exempted under the ATCM must meet the specified emission limits, as shown in Table 5.504.4.5.

TABLE 5.504.4.5

FORMALDEHYDE LIMITS1 Maximum Formaldehyde Emissions in Parts per Million

PRODUCTCURRENT LIMIT
Hardwood plywood veneer core0.05
Hardwood plywood composite core0.05
Particleboard0.09
Medium density fiberboard0.11
Thin medium density fiberboard20.13
  1. Values in this table are derived from those specified by the California Air Resources Board, Air Toxics Control Measure for Composite Wood as tested in accordance with ASTM E1333. For additional information, see California Code of Regulations, Title 17, Sections 93120 through 93120.12.
  2. Thin medium density fiberboard has a maximum thickness of 5/16 inch (8 mm).
Reserved.

Verification of compliance with this section shall be provided as requested by the enforcing agency. Documentation shall include at least one of the following:

  1. Product certifications and specifications.
  2. Chain of custody certifications.
  3. Product labeled and invoiced as meeting the Composite Wood Products regulation (see CCR, Title 17, Section 93120, et seq.).
  4. Exterior grade products marked as meeting the PS-1 or PS-2 standards of the Engineered Wood Association, the Australian AS/NZS 2269 or European 636 3S standards.
  5. Other methods acceptable to the enforcing agency.

For 80 percent of floor area receiving resilient flooring, installed resilient flooring shall meet at least one of the following:

  1. Certified under the Resilient Floor Covering Institute (RFCI) FloorScore program;
  2. Compliant with the VOC-emission limits and testing requirements specified in the California Department of Public Health’s 2010 Standard Method for the Testing and Evaluation Chambers, Version 1.1, February 2010;
  3. Compliant with the Collaborative for High Performance Schools California (CA-CHPS) Criteria Interpretation for EQ 7.0 and EQ 7.1 (formerly EQ 2.2) dated July 2012 and listed in the CHPS High Performance Product Database; or
  4. Products certified under UL GREENGUARD Gold (formerly the Greenguard Children’s & Schools Program).
Documentation shall be provided verifying that resilient flooring materials meet the pollutant emission limits.

In mechanically ventilated buildings, provide regularly occupied areas of the building with air filtration media for outside and return air that provides at least a Minimum Efficiency Reporting Value (MERV) of 8. MERV 8 filters shall be installed prior to occupancy, and recommendations for maintenance with filters of the same value shall be included in the operation and maintenance manual.

Exceptions:

  1. An ASHRAE 10-percent to 15-percent efficiency filter shall be permitted for an HVAC unit meeting the 2013 California Energy Code having 60,000 Btu/h or less capacity per fan coil, if the energy use of the air delivery system is 0.4 W/ cfm or less at design air flow.
  2. Existing mechanical equipment.
Installed filters shall be clearly labeled by the manufacturer indicating the MERV rating.
Where outdoor areas are provided for smoking, prohibit smoking within 25 feet of building entries, outdoor air intakes and operable windows and within the building as already prohibited by other laws or regulations; or as enforced by ordinances, regulations or policies of any city, county, city and county, California Community College, campus of the California State University, or campus of the University of California, whichever are more stringent. When ordinances, regulations or policies are not in place, post signage to inform building occupants of the prohibitions.
Buildings shall meet or exceed the provisions of California Building Code, CCR, Title 24, Part 2, Sections 1203 (Ventilation) and Chapter 14 (Exterior Walls). For additional measures not applicable to low-rise residential occupancies, see Section 5.407.2 of this code.
For mechanically or naturally ventilated spaces in buildings, meet the minimum requirements of Section 120.1 (Requirements For Ventilation) of the 2013 California Energy Code, or the applicable local code, whichever is more stringent, and Division 1, Chapter 4 of CCR, Title 8.
For buildings or additions equipped with demand control ventilation, CO2 sensors and ventilation controls shall be specified and installed in accordance with the requirements of the 2013 California Energy Code, Section 120(c)(4).

Employ building assemblies and components with Sound Transmission Class (STC) values determined in accordance with ASTM E90 and ASTM E413 or Outdoor-Indoor Sound Transmission Class (OITC) determined in accordance with ASTM E1332, using either the prescriptive or performance method in Section 5.507.4.1 or 5.507.4.2.

Exception: Buildings with few or no occupants or where occupants are not likely to be affected by exterior noise, as determined by the enforcement authority, such as factories, stadiums, storage, enclosed parking structures and utility buildings.

Exception: [DSA-SS] For public schools and community colleges, the requirements of this section and all subsections apply only to new construction.

Wall and roof-ceiling assemblies exposed to the noise source making up the building or addition envelope or altered envelope shall meet a composite STC rating of at least 50 or a composite OITC rating of no less than 40, with exterior windows of a minimum STC of 40 or OITC of 30 in the following locations:

  1. Within the 65 CNEL noise contour of an airport.

    Exceptions:

    1. Ldn or CNEL for military airports shall be determined by the facility Air Installation Compatible Land Use Zone (AICUZ) plan.
    2. Ldn or CNEL for other airports and heliports for which a land use plan has not been developed shall be determined by the local general plan noise element.
  2. Within the 65 CNEL or Ldn noise contour of a freeway or expressway, railroad, industrial source or fixed-guideway source as determined by the Noise Element of the General Plan.
Buildings exposed to a noise level of 65 dB Leq-1-hr during any hour of operation shall have building, addition or alteration exterior wall and roof-ceiling assemblies exposed to the noise source meeting a composite STC rating of at least 45 (or OITC 35), with exterior windows of a minimum STC of 40 (or OITC 30).
For buildings located as defined in Section 5.507.4.1 or 5.507.4.1.1, wall and roof-ceiling assemblies exposed to the noise source making up the building or addition envelope or altered envelope shall be constructed to provide an interior noise environment attributable to exterior sources that does not exceed an hourly equivalent noise level (Leq-1Hr) of 50 dBA in occupied areas during any hour of operation.
Exterior features such as sound walls or earth berms may be utilized as appropriate to the building, addition or alteration project to mitigate sound migration to the interior.
An acoustical analysis documenting complying interior sound levels shall be prepared by personnel approved by the architect or engineer of record.

Wall and floor-ceiling assemblies separating tenant spaces and tenant spaces and public places shall have an STC of at least 40.

Note: Examples of assemblies and their various STC ratings may be found at the California Office of Noise Control: http://www.toolbase.org/PDF/CaseStudies/stc_icc_ratings.pdf.

Installations of HVAC, refrigeration and fire suppression equipment shall comply with Sections 5.508.1.1 and 5.508.1.2.
Install HVAC, refrigeration and fire suppression equipment that do not contain CFCs.
Install HVAC, refrigeration and fire suppression equipment that do not contain Halons.

New commercial refrigeration systems shall comply with the provisions of this section when installed in retail food stores 8,000 square feet or more conditioned area, and that utilize either refrigerated display cases, or walk-in coolers or freezers connected to remote compressor units or condensing units. The leak reduction measures apply to refrigeration systems containing high-global-warming potential (high-GWP) refrigerants with a GWP of 150 or greater. New refrigeration systems include both new facilities and the replacement of existing refrigeration systems in existing facilities.

Exception: Refrigeration systems containing low-global warming potential (low-GWP) refrigerant with a GWP value less than 150 are not subject to this section. Low-GWP refrigerants are nonozone-depleting refrigerants that include ammonia, carbon dioxide (CO2), and potentially other refrigerants.

Piping compliant with the California Mechanical Code shall be installed to be accessible for leak protection and repairs. Piping runs using threaded pipe, copper tubing with an outside diameter (OD) less than 1/4 inch, flared tubing connections and short radius elbows shall not be used in refrigerant systems except as noted below.
Threaded connections are permitted at the compressor rack.
Copper tubing with an OD less than 1/4 inch may be used in systems with a refrigerant charge of 5 pounds or less.
One-fourth-inch OD tubing shall be securely clamped to a rigid base to keep vibration levels below 8 mils.

Double-flared tubing connections may be used for pressure controls, valve pilot lines and oil.

Exception: Single-flared tubing connections may be used with a multiring seal coated with industrial sealant suitable for use with refrigerants and tightened in accordance with manufacturer’s recommendations.

Short radius elbows are only permitted where space limitations prohibit use of long radius elbows.
Valves and fittings shall comply with the California Mechanical Code and as follows.
For vessels containing high-GWP refrigerant, a rupture disc shall be installed between the outlet of the vessel and the inlet of the pressure relief valve.
A pressure gauge, pressure transducer or other device shall be installed in the space between the rupture disc and the relief valve inlet to indicate a disc rupture or discharge of the relief valve.
Only Schrader access valves with a brass or steel body are permitted for use.
For systems with a refrigerant charge of 5 pounds or more, valve caps shall be brass or steel and not plastic.
If designed for it, the cap shall have a neoprene O-ring in place.

Chain tethers to fit over the stem are required for valves designed to have seal caps.

Exception: Valves with seal caps that are not removed from the valve during stem operation.

Refrigerated service cases holding food products containing vinegar and salt shall have evaporator coils of corrosion-resistant material, such as stainless steel; or be coated to prevent corrosion from these substances.
Consideration shall be given to the heat transfer efficiency of coil coating to maximize energy efficiency.
Refrigerant receivers with capacities greater than 200 pounds shall be fitted with a device that indicates the level of refrigerant in the receiver.
The system shall be pressure tested during installation prior to evacuation and charging.
The system shall be charged with regulated dry nitrogen and appropriate tracer gas to bring system pressure up to 300 psig minimum.
Check the system for leaks, repair any leaks, and retest for pressure using the same gauge.
The system shall stand, unaltered, for 24 hours with no more than a +/- one pound pressure change from 300 psig, measured with the same gauge.
The system shall be evacuated after pressure testing and prior to charging.
Pull a system vacuum down to at least 1000 microns (+/- 50 microns), and hold for 30 minutes.
Pull a second system vacuum to a minimum of 500 microns and hold for 30 minutes.
Pull a third vacuum down to a minimum of 300 microns, and hold for 24 hours with a maximum drift of 100 microns over a 24-hour period.
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