API RP 17A Addendum 1 Design and Operation of Subsea Production Systems-General Requirements and Recommendations, Fourth Edition, Addendum 1 (2010) Amendment by American Petroleum Institute, 12/01/2010
API Spec 6A Errata 1 Errata to Specification for Wellhead and Christmas Tree Equipment, Twentieth Edition (ISO 10423:2009 Modification) standard by American Petroleum Institute, 01/01/2011
API Spec 7-2 Addendum 1 Addendum 1 to Specification for Threading and Gauging of Rotary Shouldered Thread Connections, First Edition (previously covered in Spec 7) Amendment by American Petroleum Institute, 12/01/2010
API Spec 6D Errata 5 Errata 5 (Includes Errata 1, 2, 3, 4) to Specification for Pipeline Valves, Twenty-third Edition (Identical to ISO 14313:2007) Amendment by American Petroleum Institute, 11/01/2010
API RP 1109 Errata Errata for Marking Liquid Petroleum Pipeline Facilities, Fourth Edition Amendment by American Petroleum Institute, 11/01/2010
API Spec 11B Errata 2 Errata 2 to Specification for Sucker Rods, Polished Rods and Liners, Couplings, Sinker Bars, Polished Rod Clamps, Stuffing Boxes, and Pumping Tees Amendment by American Petroleum Institute, 02/01/2011
API Spec 6A Errata 2 Errata 2 to Specification for Wellhead and Christmas Tree Equipment, Twentieth Edition (ISO 10423:2009 Modification) standard by American Petroleum Institute, 11/01/2011
API RP 1626 Addendum 1 Addendum 1 to Storing and Handling Ethanol and Gasoline-Ethanol Blends at Distribution Terminals and Filling Stations, Second Edition Amendment by American Petroleum Institute, 08/01/2012
API Std 620 Addendum 3 Addendum 3 to Design and Construction of Large, Welded, Low-Pressure Storage Tanks, Eleventh Edition Amendment by American Petroleum Institute, 03/01/2012
API Std 653 Addendum 2 Tank Inspection, Repair, Alteration, and Reconstruction, Fourth Edition Amendment by American Petroleum Institute, 01/01/2012
API Spec 6A Addendum 1 Addendum 1 to Specification for Wellhead and Christmas Tree Equipment, Twentieth Edition (ISO 10423:2009 Modification), Includes Addenda 1(Nov 2011), 2 (Nov 2012), 3 (March 2013) Amendment by American Petroleum Institute, 11/01/2011
API RP 1102 Errata 3 Errata 3 to Steel Pipelines Crossing Railroads and Highways, Seventh Edition Amendment by American Petroleum Institute, 09/01/2012