PURPOSE: This rule regulates the installation of liquified petroleum gas appliances and liquified petroleum gas piping.

PUBLISHER’S NOTE: The secretary of state has determined that the publication of the entire text of the material which is incorporated by reference as a portion of this rule would be unduly cumbersome or expensive. This material as incorporated by reference in this rule shall be maintained by the agency at its headquarters and shall be made available to the public for inspection and copying at no more than the actual cost of reproduction. This note applies only to the reference material. The entire text of the rule is printed here.

1. (1) Standards contained in National Fire Protection Association (NFPA) Manual No. 54, National Fuel Gas Code, 1999 edition, published by the National Fire Protection Association, 1 Batterymarch Park, Quincy, MA 02269-9101, are incorporated herein by reference. This rule does not incorporate any subsequent amendments or additions to the referenced material. The balance of this rule sets forth requirements for liquefied petroleum (LPG) applications not covered in the manual. The scope of National Fire Protection Association (NFPA) Manual No. 54, National Fuel Gas Code, 1999 edition, is to develop fire safety codes, standards, recommended practices, and manuals, as may be considered desirable, covering the installation of piping and appliances using fuel gases such as natural gas, manufactured gas, liquefied petroleum gas, and liquefied petroleum gas-air mixture.
2. (2) All flexible appliance connectors shall be listed and approved for LPG use.
3. (3) All flexible appliance connectors which are listed and approved for LPG use shall have “Approved for LPG use” and pressure rating stamped or marked on connector.
4. (4) The repair or welding of LPG appliance heat exchangers is strictly prohibited.
5. (5) All appliances, except bunsen burners, ranges or cooktops, installed in public build- 2 CSR 90-10

ings, such as schools, nursing homes or hospitals, shall be equipped with one hundred percent (100%) shut-off safety valves.

1. (6) All science or laboratory rooms using LPG shall have an accessible and marked master shut-off valve located within the science or laboratory room.
2. (7) All home economic, science, kitchen or laboratory rooms shall have an accessible, properly charged fire extinguisher with a minimum rating of twenty (20) ABC (A class-combustible materials, B classflammable liquids, C class-live electrical equipment) located in an accessible location within the room.

AUTHORITY: section 261.023.6, RSMo 2000 and section 323.020, RSMo Supp. 2008.* Original rule filed Jan. 24, 1968, effective Feb. 3, 1968. Amended: Filed Sept. 8, 1969, effective Sept. 18, 1969. Amended: Filed May 13, 1977, effective Jan. 13, 1978. Amended: Filed May 2, 1985, effective Sept. 27, 1985. Amended: Filed March 3, 1989, effective June 29, 1989. Amended: Filed Nov. 13, 1997, effective June 30, 1998. Amended: Filed Dec. 3, 2001, effective June 30, 2002. Amended: Filed Oct. 15, 2008, effective March 30, 2009.

*Original authority: 261.023.6, RSMo 1973 and 323.020, RSMo 1947, amended 1994, 1998, 2005, 2007.