INCORPORATION BY REFERENCE
Parts 1346.5050 to 1346.6014 are known and may be cited as the “Minnesota Fuel Gas Code."
Chapters 2 to 8 of the 2012 edition of the International Fuel Gas Code (IFGC), as promulgated by the International Code Council, Inc., Washington, DC, are incorporated by reference as part of the Minnesota Fuel Gas Code except as qualified by the applicable provisions in Minnesota Rules, Chapter 1300, and as amended in this code. Portions of this code reproduce excerpts from the 2012 IFGC, International Code Council, Inc., Washington, DC, copyright 2012, reproduced with permission, all rights reserved.
The IFGC is not subject to frequent change and a copy of the IFGC, with amendments for use in Minnesota, is available in the office of the commissioner of labor and industry.
REFERENCES TO OTHER INTERNATIONAL CODE
COUNCIL (ICC) CODES
References to other codes and standards promulgated by the International Code Council in the IMC and IFGC are modified in subparts 2 to 10.
References to the International Building Code mean the Minnesota Building Code, Minnesota Rules, Chapter 1305, adopted pursuant to Minnesota Statutes, Section 326B.106, subdivision 1.
References to the International Residential Code mean the Minnesota Residential Code, Minnesota Rules, Chapter 1309, adopted pursuant to Minnesota Statutes, Section 326B.106, subdivision 1.
References to the International Code Council Electrical Code mean the Minnesota Electrical Code, Minnesota Rules, Chapter 1315, adopted pursuant to Minnesota Statutes, Section 326B.35.
References to the International Mechanical Code mean the Minnesota Mechanical Code, Minnesota Rules, parts 1346.0050 to 1346.1500, adopted pursuant to Minnesota Statutes, Section 326B.106, subdivision 1.
References to the International Plumbing Code mean the Minnesota Plumbing Code, Minnesota Rules, Chapter 4715, adopted pursuant to Minnesota Statutes, Section 326B.106, subdivisions 1 and 2.
References to the International Private Sewage Disposal Code mean the Minnesota Pollution Control Agency’s minimum standards and criteria for individual sewage treatment systems, Minnesota Rules, Chapter 7080, adopted pursuant to Minnesota Statutes, Chapters 103F, 103G, 115, and 116.
References to the International Energy Conservation Code mean the Minnesota Residential Energy Code, Minnesota Rules, Chapter 1322, and the Minnesota Commercial Energy Code, Minnesota Rules, Chapter 1323, adopted pursuant to Minnesota Statutes, Section 326B.115.
References to the International Property Maintenance Code are deleted.
References to the International Fire Code mean the Minnesota State Fire Code, Minnesota Rules, Chapter 7511, adopted pursuant to Minnesota Statutes, Chapter 299F.
This code shall apply to the installation of fuel gas piping systems, fuel gas appliances, gaseous hydrogen systems, and related accessories in accordance with this code.
Gaseous hydrogen systems shall be regulated by IFGC Chapter 7, as amended.
This code applies to piping systems for natural gas with an operating pressure of 125 pounds per square inch gauge (psig) (862 kPa gauge) or less, and for LP-gas with an operating pressure of 20 psig (140 kPa gauge) or less, except as provided in IFGC Section 402.6.1. Coverage shall extend from the point of delivery to the outlet of the appliance shutoff valves. Piping system requirements shall include design, materials, components, fabrication, assembly, installation, testing, inspection, operation, and maintenance.
This code applies to gas appliances and related accessories on the side of the meter that supply gas to the building piping system and shall include installation, combustion, and ventilation air and venting and connections to piping systems.
This code shall not apply to the following:
1. Portable LP-gas appliances and equipment of all types that is not connected to a fixed-fuel piping system.
2. Installation of farm appliances and equipment such as brooders, dehydrators, dryers, and irrigation equipment.
3. Raw material (feedstock) applications except for piping to special atmosphere generators.
4. Oxygen-fuel gas cutting and welding systems.
5. Industrial gas applications using gases such as acetylene and acetylenic compounds, hydrogen, ammonia, carbon monoxide, oxygen, and nitrogen.
6. Petroleum refineries, pipeline compressor or pumping stations, loading terminals, compounding plants, refinery tank farms, and natural gas processing plants.
7. Integrated chemical plants or portions of such plants where flammable or combustible liquids or gases are produced by, or used in, chemical reactions.
8. LP-gas installations at utility gas plants.
9. Liquefied natural gas (LNG) installations.
10. Fuel gas piping in power and atomic energy plants.
11. Proprietary items of equipment, apparatus, or instruments such as gas-generating sets, compressors, and calorimeters.
12. LP-gas equipment for vaporization, gas mixing, and gas manufacturing.
13. Temporary LP-gas piping for buildings under construction or renovation that is not to become part of the permanent piping system.
14. Installation of LP-gas systems for railroad switch heating.
15. Installation of hydrogen gas, LP-gas, and compressed natural gas (CNG) systems on vehicles.
16. Except as provided in IFGC Section 401.1.1, gas piping, meters, gas pressure regulators, and other appurtenances used by the serving gas supplier in the distribution of gas, other than undiluted LP-gas.
17. Building design and construction, except as specified in this rule.
18. Piping systems for mixtures of gas and air within the flammable range with an operating pressure greater than 10 psig (69 kPa gauge).
19. Portable fuel cell appliances that are neither connected to a fixed piping system nor interconnected to a power grid.
The requirements for the design, installation, maintenance, alteration, and inspection of mechanical systems operating with fuels other than fuel gas shall be regulated by the Minnesota Mechanical Code, parts 1346.0050 to 1346.1500.