238.21—Special approval procedure.

(a) General. The following procedures govern consideration and action upon requests for special approval of alternative standards under § 238.103, § 238.223, § 238.229, § 238.309, § 238.311, § 238.405, or § 238.427; for approval of alternative compliance under § 238.201, § 238.229, or § 238.230; and for special approval of pre-revenue service acceptance testing plans as required by § 238.111. (Requests for approval of programs for the inspection, testing, and maintenance of Tier II passenger equipment are governed by § 238.505.)
[64 FR 25660, May 12, 1999, as amended at 64 FR 70196, Dec. 16, 1999; 71 FR 61858, Oct. 19, 2006; 74 FR 25174, May 27, 2009]