49 CFR § 211.55
Special approvals
November 18, 2020
Requests for special approval pertaining to safety not otherwise provided for in this chapter, must be submitted in accordance with §211.7; specifying the action requested. These requests shall be considered by the Railroad Safety Board and appropriate action shall be taken not later than 9 months after receipt. When a decision is issued, the requestor and other interested parties are notified or a notice is published in the Federal Register.
[41 FR 54181, Dec. 13, 1976, as amended at 74 FR 25171, May 27, 2009]