In order to expedite the process, the OTM request may be faxed to FRA’s headquarters in Washington, DC, at (202) 493-6309, or if it is a Regional-Local OTM, the request can be faxed to the appropriate regional office as noted above. The fax cover sheet should be addressed to the attention of the Staff Director, Motive Power & Equipment Division, or the Regional Administrator, accordingly. However, the signed original request letter must in all cases be addressed to the Director of the Office of Safety Assurance and Compliance and mailed to the appropriate address, either headquarters or the appropriate regional office