Whenever action is taken on any existing building to repair, make alterations, or change the use or occupancy of an existing structure and, when said action proposes the use of compliance alternatives, the authorized enforcement authority shall ensure that at least one copy of the accepted compliance alternatives approved, including applicable plans, test data, or other data submitted for evaluation, be maintained on file in the office of the local enforcement authority. If said structure also falls under the jurisdiction of a state level enforcement authority, at least one copy of same material shall be maintained on file with that authority.