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.
49 C.F.R. §211.55