Parker CSS has certain parts that are approved by the FAA for the commercial aircraft market. The FAA's current description / definition of the Airworthiness Approval Tag is found in AC (Advisory Circular) 20- 62D under section 7, paragraph a.
"FAA Form 8130-3, Airworthiness Approval Tag, identifies a part or group of parts for export approval and conformity determination from production approval holders. It also serves as approval for return to service after maintenance or alteration by an authorized part 145 Repair Station, or a U.S. Air Carrier having an approved Continuous Airworthiness Maintenance Program under part 135."
ss 6/4/2020