PURPOSE: This rule sets out the minimum general standards governing design, construction, location and installation of equipment for storing and handling liquefied petroleum gas. These minimum general standards are designed to assure the required safety for life and property. The requirements contained in this rule will insure the safety of life and property.

PUBLISHER’S NOTE: The forms referenced in this rule may be accessed through the Missouri Department of Agriculture’s website at www.mda.state.mo.us or by request from the agency at (573) 751-4278.

1. (1) Prior to installation, two (2) copies of the detailed plans of the proposed liquefied petroleum gas (LPG) installation covering the LPG system and piping, including the size and total storage capacity of all LPG storage tanks shall be forwarded to the inspection authority for consideration and approval for installations at buildings of public assembly or use such as schools, churches, recreational halls, tourist courts, hotels, hospitals, sanitariums, convalescent homes, nursing homes, rest homes, four (4)-unit apartments and larger or similar types of public buildings having institutional occupancies, for new construction, major renovations or additions to these installations and mobile home parks, shopping center areas, service stations, bulk plants, industrial plants and other similar locations of public gathering. When approval is granted, one (1) copy of the plans will be returned to the party submitting the original proposal. Final inspection and approval is required before placing the installation into service. If installation of the proposed LPG system has not begun within ninety (90) days from the date of approval by the state LPG inspection authority, new plans shall be resubmitted prior to the time installation does begin.
2. (2) Detailed plans shall be furnished to the inspection authority for approval before installation of LPG containers having a water capacity of ten thousand (10,000) gallons or more, or two (2) or more containers that are to be connected and have a combined capacity of ten thousand (10,000) gallons or over, or when LPG in the liquid phase is to be withdrawn or of a container charging plant where portable containers are to be recharged and filled regardless of the capacity of the storage containers used as the supply for filling containers and cylinders.

3. (3) The following requirements shall be met on plans that shall be submitted to the inspection authority of Missouri for approval before starting construction:

   1. (A) Two (2) complete copies of the plans shall be submitted to the inspection authority together with detailed specifications;
   2. (B) Plans shall be on good quality paper, legible and contain the information required by this section;

   3. (C) Plans and specifications are to be accompanied by a written application on a form prescribed by the inspection authority and shall include the following:

      1. 1. The address of the proposed location

and the name and mailing address of the owner or builder;

1. 2. An outline of the boundary lines of

the property owned or leased;

1. 3. A diagram showing adjoining proper-

ty on all sides and the distance to all adjacent buildings and roadways;

1. 4. A diagram showing the location and

sizes of each container or containers on the plot of ground to be used;

1. 5. A diagram pinpointing each location

where liquid transfer will be made, such as loading, unloading and bottling;

1. 6. A general layout of piping, pipe sup-

ports and pipe protection; the location, size and type of each important piece of equipment, gate valve, excess flow valve, pressure relief valve, hose, regulator and all other important parts of the system planned;

1. 7. The location of each building or shed

to be built on the property and each sewer or drain opening;

1. 8. The location of electrical lines and

poles and telephone poles if located twentyfive feet (25') or less from storage tanks or liquid transfer areas;

1. 9. The location of the electrical service

pole;

1. 10. The location of fences;
2. 11. The dimensions of tank foundations,

footings, reinforcements and tank clearance above ground level;

1. 12. Storage container dimensions,

whether new or used, and the name of the manufacturer;

1. 13. All used containers of two thousand

(2,000) gallons water capacity or more to be reinstalled shall have all valves removed and inspected. Relief valves shall be tested and if defective, replaced with new valves of proper design. A statement of all tests, inspections and valve replacements shall be submitted to the inspection authority; and

1. 14. A statement that all materials and

workmanship will be in conformity with the requirements of Missouri pertaining to LPG safety standards; and

1. (D) All electrical equipment in vaporizer houses, pump houses and cylinder filling rooms or other similar locations shall be of the type approved for use in Class 1, Group 2 CSR 90-10

D, Hazardous Locations, of the National Electrical Code.

1. (4) All installations for use of LPGs in containers of sixty to one hundred ten (60–110) pounds, LPG capacity, shall be provided with adequate and safe means of protection to assure that the cylinder is supported in its installed position and that there is reasonable protection from the elements.

2. (5) When two (2) or more LPG containers, having a water capacity of over one thousand (1,000) gallons each or a combined total water capacity of more than one thousand two hundred (1,200) gallons, are connected by a common liquid line that provides outlet or inlet that may be used as a common filling or withdrawing convenience—

   1. (A) All tanks so connected shall be installed in a manner as to assure that the tops of all tanks are at the same elevation and have approximately the same working pressure rating;
   2. (B) Each tank shall be provided with the proper size and type excess flow valve in the immediate point of opening in the tank where the common line enters each tank;
   3. (C) The rated capacity of excess flow valves in the common header between the tanks and the common pipeline from the system shall not be greater than the maximum flow capacity of the piping, valves and fittings located downstream from the point of installation of the excess flow valve; and
   4. (D) All pipelines and connections shall be provided with sufficient flexibility to withstand any and all settling of the tank foundation, expansion or contraction of the system.
3. (6) All commercial, industrial and institutional LPG storage systems shall be accessible for emergency fire fighting equipment.
4. (7) All LPG storage tanks shall be installed a minimum distance of twenty feet (20') from all other Class I, II and III liquids. In the event of a hazardous location, the LPG inspection authority may require a greater distance and location up to a maximum distance of one hundred feet (100').
5. (8) Industrial, commercial or institutional LPG storage tanks shall not be buried, mounded or partially mounded without specific approval by the LPG inspection authority. Approval shall not be granted until a complete assessment of the proposed system and location has been made and found to comply with all state and local safety requirements.
6. (9) All LPG dispensers shall have plans submitted as required by sections (1)–(3).
7. (10) All LPG dispensers shall be protected from tampering or vandalism by either a six foot (6') high industrial-type fence with one
8. (1) lockable gate or a lockable storage cabinet to protect service valves, meters, hoses and accessory equipment.
9. (11) All LPG dispensers shall have recommended fill procedures posted in a conspicuous location and all cylinder fill dispensers shall be equipped with a state-approved scale to be utilized for the safe filling of LPG cylinders. LP gas cylinders of one hundred (100) pounds water capacity or less shall be filled by weight only utilizing a state-approved scale. Cylinders of one hundred (100) pounds capacity or less shall not be filled from any LP gas delivery vehicle. An exception may be made by the inspection authority for cylinders utilized in hot air balloon service if the cylinders are approved for such service, have an accurate approved method of gauging, are in good condition and are filled in a safe location away from any source of ignition.
10. (12) Each commercial and industrial LPG dispensing system, except those filled by weight only, shall incorporate into the dispensing system an approved pullaway device to stop the uncontrolled discharge of LPG. The pullaway device shall be adequately secured against displacement and shall be installed in accordance with the manufacturer’s instructions.
11. (13) Polyethylene pipe or tubing may be used for LPG service if in compliance with the American Society of Testing and Materials (ASTM) D2513 Standards, National Fire Protection Association (NFPA) 58, 1995 Edition, installed only underground and approved by the LPG inspection authority. Plastic pipe or tubing shall not be used.

AUTHORITY: section 323.020, RSMo 2000.* Original rule filed July 13, 1977, effective Nov. 11, 1977. 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.

*Original authority: 323.020, RSMo 1947, amended 1994, 1998. Op. Atty. Gen. No. 86, Sturgis, 2-3-55. A private individual user of liquified petroleum gas may transport over the highways of Missouri empty liquified petroleum gas drums or such drums containing such gas without violating Basic Rule B.15 of the regulations promulgated under section 323.020, RSMo 1969.