(b) When a new certificate of birth is established, the actual place and date of birth shall be shown. The new certificate shall be substituted for the original certificate of birth, and
- (1) thereafter, in the case of an adoption, the original certificate and the evidence of adoption are not subject to inspection except as provided in AS 18.50.500 — 18.50.510 or by order of the superior court under AS 25.23.150, but the state registrar shall allow inspection by an agent of the state or federal government acting in the performance of the agent's official duties; in the case of a legitimation, the original certificate and the evidence of legitimation are not subject to inspection except upon order of the superior court or as provided by regulation; however, the regulation shall allow inspection by an agent of the state or federal government acting in the performance of the agent's official duties;
- (2) upon receipt of a report that an adoption has been vacated, the original certificate of birth shall be restored to its place in the files and the new certificate and evidence are not subject to inspection except upon order of a superior court.