|Adopt Entire Chapter||X||X||X|
|Adopt Entire Chapter as amended (amended sections listed below)||X||X||X||X||X||X|
|Adopt only those sections that are listed below|
The Office of the State Fire Marshal's adoption of this chapter or individual sections is applicable to structures regulated by other state agencies pursuant to Section 1.11.
- No galvanized steel or 304 stainless steel pipe shall be installed underground and shall be not less than 6 inches (152 mm) aboveground.
- ABS and PVC DWV piping installations shall be in accordance with the applicable standards referenced in Table 1701.1, this code, and the California Building Code. Except for individual single-family dwelling units, materials exposed within ducts or plenums shall have a flame-spread index of not more than 25 and a smoke-developed index of not more than 50 where tested in accordance with ASTM E84 or UL 723.
Exception: Where connected to a common building sewer, the drainage piping of two or more buildings located on the same lot and under one ownership shall be permitted to be vented by means of piping sized in accordance with Table 703.2, provided the aggregate cross-sectional area of vents is not less than that of the largest required common building sewer.
Exception: Where a minimum-sized vent is increased one pipe size for its entire length, the maximum length limitation shall not apply.
- For safe pans - not less than 4 pounds per square foot (lb/ft2) (19 kg/m2) or 1/16 of an inch (1.6 mm) thick.
- For flashings or vent terminals - not less than 3 lb/ft2 (15 kg/m2).
- Lead bends and lead traps shall be not less than 1/8 of an inch (3.2 mm) in wall thickness.
Exception: Branch lines shall be permitted to have 45 degree (0.79 rad) vertical offsets.
See Appendix B of this code for explanatory notes on the design of combination waste and vent systems.