49 C.F.R. § 238.407 Anti-climbing mechanism.
Title 49 - Transportation
(a) Each power car shall have an anti-climbing mechanism at its forward end capable of resisting an ultimate upward or downward static vertical force of 200,000 pounds. A power car constructed with a crash energy management design is permitted to crush in a controlled manner before the anti-climbing mechanism fully engages. (b) Interior train coupling points between units, including between units of articulated cars or other permanently joined units of cars, shall have an anti-climbing mechanism capable of resisting an upward or downward vertical force of 100,000 pounds without yielding. (c) The forward coupler of a power car shall be attached to the car body to resist a vertical downward force of 100,000 pounds for any horizontal position of the coupler without yielding.
Title 49: Transportation
PART 238—PASSENGER EQUIPMENT SAFETY STANDARDS
Subpart E—Specific Requirements for Tier II Passenger Equipment
§ 238.407 Anti-climbing mechanism.
