236.913—Filing and approval of PSPs.

(i) How may a PSP be amended? A railroad may submit an amendment to a PSP at any time in the same manner as the initial PSP. Notwithstanding the otherwise applicable requirements found in this section and § 236.915, changes affecting the safety-critical functionality of a product may be made prior to the submission and approval of the PSP amendment as necessary in order to mitigate risk.
[70 FR 11095, Mar. 7, 2005, as amended at 70 FR 72385, Dec. 5, 2005; 74 FR 25174, May 27, 2009]