14 C.F.R. § 145.57
(a) A repair station certificate holder applying for a change to its certificate must submit a request in a format acceptable to the Administrator. A change to the certificate must include certification in compliance with § 145.53(c) or (d), if not previously submitted. A certificate change is necessary if the certificate holder—
[Docket FAA-2006-26408, 79 FR 46984, Aug. 12, 2014]