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§299.403. Trainset structure. — Inbound Citations

49 C.F.R. § 299.403

Cited by 4 regulations in release 2026-08-27.

Citations to §299.403(b)

Citations to §299.403(c)(1)

  • (2) For the initial conditions specified in paragraphs (c)(1) through (3) of this section, compliance with the following conditions shall be demonstrated after a dynamic impact:
    (i) The relative difference in elevation between the underframes of the connected equipment shall not change by more than 102 mm (4 inches); and
    (ii) The tread of any wheel of the trainset shall not rise above the top of rail by more than 102 mm (4 inches).

Citations to §299.403(c)(2)

  • (2) For the initial conditions specified in paragraphs (c)(1) through (3) of this section, compliance with the following conditions shall be demonstrated after a dynamic impact:
    (i) The relative difference in elevation between the underframes of the connected equipment shall not change by more than 102 mm (4 inches); and
    (ii) The tread of any wheel of the trainset shall not rise above the top of rail by more than 102 mm (4 inches).

Citations to §299.403(c)(3)

  • (2) For the initial conditions specified in paragraphs (c)(1) through (3) of this section, compliance with the following conditions shall be demonstrated after a dynamic impact:
    (i) The relative difference in elevation between the underframes of the connected equipment shall not change by more than 102 mm (4 inches); and
    (ii) The tread of any wheel of the trainset shall not rise above the top of rail by more than 102 mm (4 inches).