API Std 653 Addendum 3 Tank Inspection, Repair, Alteration, and Reconstruction, Fourth Edition Amendment by American Petroleum Institute, 11/01/2013
API Std 675 Errata 2 Errata to API Standard Positive Displacement Pumps-Controlled Volume for Petroleum, Chemical, and Gas Industry Services, 3rd Edition Amendment by American Petroleum Institute, 04/01/2015
API Spec 6A Errata 5 Errata 5 to Specification for Wellhead and Christmas Tree Equipment, Twentieth Edition (ISO 10423:2009 Modification) standard by American Petroleum Institute, 11/01/2013
API MPMS Chapter 19.4 Addendum 1 Addendum 1 to Recommended Practice for Speciation of Evaporative Losses, Third Edition Amendment by American Petroleum Institute, 11/01/2013
API Spec 20A Addendum 1 Addendum 1 to Carbon Steel, Alloy Steel, Stainless Steel, and Nickel Base Alloy Castings for Use in the Petroleum and Natural Gas Industry, First Edition Amendment by American Petroleum Institute, 10/01/2013
API MPMS Chapter 12.1.1 Errata Errata to EI HM1 Part 1: - Calculation of Static Petroleum Quantities - Upright Cylindrical Tanks and Marine Vessels, Third Edition Amendment by American Petroleum Institute, 05/01/2015
API Spec 13A Errata Errata 1 & 2 for Specification for Drilling Fluid Materials, Eighteenth Edition standard by American Petroleum Institute, 05/01/2015
API Spec 14A Errata Errata for Specification for Subsurface Safety Valve Equipment, Twelfth Edition Amendment by American Petroleum Institute, 07/01/2015
API Spec 13A Errata Errata 1, 2 & 3 for Specification for Drilling Fluid Materials, Eighteenth Edition Amendment by American Petroleum Institute, 07/01/2015
API Spec 6D Errata Errata for Specification for Pipelineand Piping Valves, Twenty-Fourth Edition. Includes Errata 1 (2014), Errata 2 (2014), Errata 3 (2015), and Errata 4 (2015) Amendment by American Petroleum Institute, 07/01/2015
API Spec 6D Errata 4 Errata 4 to Specification for Pipelineand Piping Valves, Twenty-Fourth Edition Amendment by American Petroleum Institute, 06/01/2015
API MPMS Chapter 4.5 Errata Errata to Proving Systems: Master-Meter Provers, Third Edition Amendment by American Petroleum Institute, 06/01/2014