API Spec 5-CT, Cert No. 1545, Roma. 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, Roma. Scope: Drill Stem Subs and threading on rotary shoulder connections.
API Spec 6A, Cert No. 2189, Brisbane. 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