10 CFR §53.1530

1. (a)The holder of an ML may make changes to the facility or procedures as described in the Final Safety Analysis Report (FSAR) associated with the ML without obtaining a license amendment pursuant to § 53.1510 if the change meets the criteria in § 53.1550(a)(1) and (2) using the specifications in § 53.1550(b). If needed, applications for amending an ML must be submitted and processed in accordance with §§ 53.1510, 53.1515, and 53.1520. In those cases where an ML references a design certification rule, the amendment application from the holder of the ML must also request an exemption from the design certification rule under § 53.1525 if proposing to change one or more elements of the certification information.
2. (b)
   1. (1)The holder of an ML must maintain records of changes to the facility or procedures made without a license amendment under paragraph (a) of this section. These records must include a written evaluation which provides the bases for the determination that the change does not require a license amendment under the criteria in paragraph § 53.1550(a)(2).
   2. (2)The records of changes in the facility must be maintained until the expiration of an ML issued under this part, or the expiration of a renewed license issued under § 53.1295—whichever is later. Records of changes in procedures must be maintained for a period of 5 years.