A pharmacist who has been issued a license in California may request the board to issue him or her a "retired pharmacist" license. The board shall not issue a retired license to a pharmacist whose license has been revoked. A pharmacist holding a "retired pharmacist" license shall not engage in any activity for which an active pharmacist's license is required. A "retired pharmacist" license is nonrenewable. In order for the holder of a "retired pharmacist" license to restore to active status, he or she shall pass the examination that is required for initial licensure with the board.