1. (a)

   1. (1) The following section applies to liquefied petroleum gas containers mounted on trailers or motor vehicles of the farm type used in connection with the transporting of liquefied petroleum gas on the farm and from one farm to another where owned by the same user, and shall not exceed one thousand two hundred (1,200) water gallon capacity.

   2. (2) Before the Director of the Liquefied Petroleum Gas Board may grant approval, it will be necessary that each farm user desiring to operate liquefied petroleum gas equipment under the provisions of this section:

      1. (A) Submit to the Liquefied Petroleum Gas Board a written report covering the complete phase of the intended operation; and
      2. (B) Confirm the fact that the conditions under which approval may be granted are thoroughly understood and agreed to by the user.
2. (b) All liquefied petroleum gas containers for use on farm trailers or motor vehicles shall be constructed for a safe working pressure of not less than two hundred fifty pounds per square inch (250 psi).
3. (c) Four-wheel trailers shall be of a type construction which will prevent the towed vehicle from whipping or swerving from side to side in a dangerous or unreasonable manner, but will enable it to follow substantially in the path of the towing vehicle.
4. (d) Containers having a water capacity not in excess of thirty-five (35) gallons may be mounted on two-wheeled trailers, provided the container and trailer is properly balanced.

5. (e) All trailers shall be:

   1. (1) Firmly and securely attached to the vehicle drawing them by means of drawbars of the pintle hook type;
   2. (2) Equipped with a positive locking device which will prevent separation of the two (2) units; and
   3. (3) Supplemented by suitable safety chains.
6. (f) All trailers shall be equipped with axle and wheel assemblies of sufficient size to support the weight of the container and contents adequately and safely when loaded to capacity.
7. (g) All containers shall be mounted on trailers in such a manner that the bottom of the container will be as close to the ground level as possible, but in no case shall they be over thirty-six inches (36”) above ground level.
8. (h) When containers are placed on trailers that do not have a swivel in front axle to allow for a rocking action when the trailer is moving over rough or uneven ground, the container shall be bolted to the rear axle only and strapped by a band over the top of the tank at both the front and rear of the tank.
9. (i) No container mounted on a farm trailer or motor vehicle shall be permitted on public highways except where necessary for travel from one farm to another, both of which are owned by the user.

10. (j)

    1. (1) All hose connections on farm trailers or motor vehicles shall have a hand operated shutoff valve at the tank end of the hose.
    2. (2) This shutoff valve shall be attached to an excess flow valve of adequate size.
    3. (3) The spring, seat, and poppet valve parts of the excess flow valve shall be inside of the tank or even with the outer portion of the container.
    4. (4) In no case shall the working mechanism of the excess flow valve extend beyond the outer shell of the container.

11. (k) All containers mounted on farm trailers or motor vehicles that have a fuel transfer hose attached to the container shall have a bracket attached to them to:

    1. (1) Support the hose properly; and
    2. (2) Keep it from becoming loose and dragging while the trailer is in motion.

12. (l)

    1. (1) It will be permissible to use explosion-proof one hundred ten volt (110 V) electric pumps, hand pumps, and vapor piston-type pumps on farm trailers and motor vehicles, provided they are adequately protected and securely mounted.
    2. (2) Where equipped with a pump, an excess flow valve shall be installed in the tank outlet with a manual hand shutoff valve attached to the excess flow valve.
    3. (3) Internal combustion engines of the explosion-proof type may be used for supplying power to the pump provided they are adequately protected and securely mounted.

13. (m)

    1. (1) A flexible connection shall be installed between the tank and pump, unless the pump is attached directly to the tank outlet by the use of a flanged connection welded to the container.
    2. (2) The flexible connection shall be of an approved type, and where hose is used for this purpose, it shall consist of a hose with a minimum bursting pressure of not less than one thousand two hundred fifty pounds per square inch (1,250 psi).

    3. (3) There shall be etched, cast, or impressed on the hose at five-foot intervals, or on a name plate permanently attached thereto, the following information (see also 15 CAR § 270-111(i), the “Fit for Service” subsection regarding replacement name plates):

       1. (A) L.P.G.;
       2. (B) Bursting pressure; and
       3. (C) Manufacturer's name or trademark year of manufacture.
14. (n) The piping or connections between the excess flow valve and the pump shall not be reduced in size.

15. (o)

    1. (1) The pump shall be equipped with a suitable pressure actuated bypass valve, permitting flow from pump discharge to pump suction before the pump discharge pressure rises above the safety relief valve setting of the tank being filled.
    2. (2) Pump discharge shall also be equipped with a spring-loaded safety relief valve.

16. (p)

    1. (1) A safety relief valve shall be installed between each pair of shutoff valves on all liquid lines to relieve into a safe atmosphere any excess pressure that may exist.

    2. (2) The start-to-discharge pressure shall not be:

       1. (A) Less than four hundred pounds per square inch gauge (400 psig); or
       2. (B) In excess of five hundred pounds per square inch gauge (500 psig).
17. (q) Containers mounted on motor vehicles of the farm type may be equipped with a pump driven by the power take-off of the vehicle provided the pump does not have a rated capacity in excess of twenty gallons per minute (20 GPM).

18. (r)

    1. (1) Containers mounted on motor vehicles shall be properly anchored to the vehicle in a safe manner.
    2. (2) No portion of the tank or fittings shall extend beyond the bed or bumper of the vehicle.
19. (s) Any container mounted on a farm trailer or motor vehicle where transfer of liquid is made from such container into a container used to supply fuel to a stationary engine, tractor, weed burner, or other portable farming device, shall be located not less than thirty feet (30’) from any residence or publicly occupied building.

20. (t)

    1. (1) Where necessary to travel on a public highway in going from one farm to another, all containers mounted on farm trailers shall be towed by a farm tractor or motor vehicle at a speed not in excess of twenty miles per hour (20 mph).
    2. (2) Any motor vehicle having a liquefied petroleum gas container mounted thereon shall not be operated at a speed in excess of twenty miles per hour (20 mph).

21. (u)

    1. (1) Any farm trailer or motor vehicle operated upon any public highway or road after dark shall be equipped with clearance lights and a taillight.
    2. (2) It is recommended that such travel be made during the daylight hours only.

22. (v) All containers shall:

    1. (1) Be painted with a light heat-reflecting paint, equivalent to white or aluminum; and

    2. (2) Have painted on the sides and rear in red letters at least:

       1. (A) Four inches (4”) in height the word "FLAMMABLE"; and
       2. (B) Two inches (2”) in height, the words, "NO SMOKING OR OPEN FLAME PERMITTED WITHIN TEN FEET".
23. (w) No container mounted on a farm trailer or motor vehicle is to be used to transfer liquefied petroleum gas to any container except those used to supply fuel to a stationary engine, tractors, weed burners, or other farming devices owned by the user.
24. (x) The filling or servicing of any container, regardless of type or size, as outlined under the above rules, which is not under the ownership of the user, is prohibited.

25. (y)

    1. (1) All containers used for the purpose of supplying or the transfer of liquefied petroleum gas to farm trailers or motor vehicles shall be under the sole ownership or lesseeship of the user.
    2. (2) The transfer of any liquefied petroleum gas to these units from a container owned or operated on a cooperative or partnership basis, or where liquid is withdrawn for resale or redistribution by others, is prohibited.
26. (z) Commercial storage containers installed at gins, rice dryers, etc., shall not be used to supply or transfer liquid into a farm trailer or motor vehicle unless owned or controlled by the individual user for his or her own personal operation.

27. (aa)

    1. (1) A report of all containers installed on farm trailers or motor vehicles shall be made to the board upon completion of the installation, together with a report signed by the farm user, to the effect that he or she thoroughly understands and agrees to the condition under which he or she will be permitted to operate this equipment.
    2. (2) It will be the user's responsibility that each employee operating this equipment has a thorough knowledge of the rules governing this operation.

Codification Notes: “L.P.G.” means liquefied petroleum gas.