API 6A Errata 1 Specification for Wellhead and Christmas Tree Equipment Amendment by American Petroleum Institute, 08/01/2004
API RP 5B1 Addendum 1 Recommended Practice for Gaging and Inspection of Casing, Tubing and Pipe Line Threads Amendment by American Petroleum Institute, 09/01/2004
API Std 653 Addendum 1 Addendum 1-Tank Inspection, Repair, Alteration, and Reconstruction, Third Edition Amendment by American Petroleum Institute, 09/08/2003
API 650 Addendum 3 Addendum 3 - Welded Steel Tanks for Oil Storage Amendment by American Petroleum Institute, 09/01/2003
API Spec 6A Errata 2 Specification for Wellhead and Christmas Tree Equipment - Errata 2 Amendment by American Petroleum Institute, 01/10/2003
API Spec 5L Errata Specification for Line Pipe - Errata 1 Amendment by American Petroleum Institute, 01/01/2005
API MPMS Chapter 17.1 Errata Marine Measurement, Section 1 - Guidelines for Marine Cargo Inspection, Fourth Edition - Errata Amendment by American Petroleum Institute, 06/01/2005
API 6A Errata 2 Specification for Wellhead and Christmas Tree Equipment, Errata Amendment by American Petroleum Institute, 04/25/2005
API Spec 6D Annex F Specification for Pipeline Valves Amendment by American Petroleum Institute, 03/01/2005
API Std 653 Addendum 2 Addendum 2-Tank Inspection, Repair, Alteration, and Reconstruction, Third Edition Amendment by American Petroleum Institute, 11/01/2005
API MPMS Chapter 3.6 Errata Errata for Manual of Petroleum Measurement Standards - Chapter 3 - Tank Gauging Section 6: Measurement of Liquid Hydrocarbons by Hybrid Tank Measurement Systems Amendment by American Petroleum Institute, 09/01/2005
API 653-Errata 1 Tank Inspection, Repair, Alteration, and Reconstruction, Errata 1 Amendment by American Petroleum Institute, 05/01/1995