4. Every CTC or DOT Specification 112 and 114 tank car that meets the requirements of these Regulations with respect to tank head puncture resistance system and thermal protection shall be identified by stencilling in accordance with section 5 of the schedule.

• 5. (1) A company may transport, offer and receive in interchange, while on route to destination, any loaded CTC or DOT Specification 112 and 114 tank car that does not meet a requirement of these Regulations, if the tank car was billed before the applicable date specified in section 3.

• (2) A company may transport any empty CTC or DOT Specification 112 and 114 tank car that is

  • (a) not equipped with required double shelf couplers to the premises of the owner of the tank car or to such other destination as the owner may designate, if the tank car is in transit or offered for transportation before July 1st, 1979; or

  • (b) not equipped with a required tank head puncture resistance system and thermal protection to the premises of the owner of the tank car or to such other destination as the owner may designate, if the tank car is in transit or offered for transportation before October 1st, 1981.

• (3) A company may transport any DOT Specification 112 and 114 tank car that has been manufactured or modified as specified in the Special Requirements for Specifications 112 and 114 Tank Cars, Section 179/05 of Part 179 Title 49 Code of Federal Regulations (of the United States of America).