API Spec Q1, Cert No. 1410. Scope: Manufacture, Repair and Remanufacture of Casing Pup Joints and Accessories and Drill Stem Elements. Exclusion: Section 7.3, Design and Development
API Spec 5-CT, Cert No. 1545. Scope: Manufacture of Casing or Tubing Pup Joints - J55, PSL 1, K55/PSL 1 – K55, N80(1)/PSL 1; Pipe Threader
API Spec 7-1 Cert No. 1085. Scope: Drill Stem Subs and threading on rotary shoulder connections.
API Spec Q1, Cert No. 4036. Scope: Manufacture, Repair and Re-manufacture of Casing and Tubing Pup Joints and Accessories; Drill Stem Elements, Wellhead and Tree Equipment, Completion Equipment and Accessories; Pipe Threader
API Spec 6A, Cert No. 2189. Scope: Blind and Test Flanges, Tees and Crosses, Threaded Connectors, Top Connectors, Adapter Spools and Spacer Spools at PSL 1, PSL 2; Bull plugs; Valve Removal Plugs