Section 355IAC3-2-11. Tank car unloading requirements

   (a) Tank car siding shall be substantially level.

  (b) Caution signs shall be so placed on the track or car to give necessary warning to persons approaching the car from the open end or ends of the siding. The signs must be made of metal or other comparable material at least twelve (12) inches high by fifteen (15) inches wide in size, and bear the words, "STOP - TANK CAR CONNECTED", or "STOP - MEN AT WORK", the word "STOP" being in letters at least four (4) inches high. Other words must be in letters at least two (2) inches high. The letters must be white on blue background. A car so protected must not be coupled or moved. The signs must remain in place until the tank car valves have been closed and the transfer lines have been disconnected.

  (c) Brakes shall be set and the wheels blocked in both directions on all tank cars being loaded or unloaded.

  (d) Tank cars shall be unloaded only through a permanently installed unloading point and into a permanently located bulk storage container. Anhydrous ammonia shall not be unloaded directly from a railroad tank car into a transport truck or other portable container.

  (e) A standard derail must be properly set and secured in the derailing position between the car being loaded or unloaded and other cars being moved on the same track.

  (f) An ammonia tank car must be consigned for delivery and unloaded on a private track. Local regulations regarding unloading operations shall be observed.

  (g) Immediately after loading or unloading a tank car, all valves shall be closed and transfer lines disconnected. Caps or plugs on tank car sample valves, liquid valves, vapor valves, and gauging device valves shall be replaced and made wrench tight. Slip tube gauging devices shall be secured and gauge housings screwed in place. Protective housing covers must be secured, pinned, and proper seals put in place when required. Leaks from any source on a tank car shall be stopped before a car may be released to a carrier. (State Chemist of the State of Indiana; Agricultural Ammonia PT A, Sec II, Rule 2.11; filed Dec 30, 1965, 2:15 p.m.: Rules and Regs. 1966, p. 10; filed Jan 19, 2001, 2:04 p.m.: 24 IR 1633; readopted filed Jun 20, 2001, 3:22 p.m.: 24 IR 3822; readopted filed Apr 27, 2007, 2:03 p.m.: 20070509-IR-355070039RFA; readopted filed Nov 25, 2013, 3:27 p.m.: 20131225-IR-355130482RFA)