Official military documents or records about your active duty service that are filed with any Maine state, county or local government agency stay confidential for 62 years from the date they were issued.
There is nothing to apply for. The protection applies automatically once the record is filed. If an agency releases a record it should not have, raise it with that agency and with the Maine Bureau of Veterans’ Services.
Nothing. If you are asking about a specific record, know which agency holds it and when it was issued.