API RP 1102 Errata 3 Errata 3 to Steel Pipelines Crossing Railroads and Highways, Seventh Edition Amendment by American Petroleum Institute, 09/01/2012
API Spec 5CT Errata Errata for Specification for Casing and Tubing, Ninth Edition Amendment by American Petroleum Institute, 09/01/2012
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 Std 526 Errata 2 Errata 2 to Flanged Steel Pressure Relief Valves, Fifth Edition, Includes Errata (May 2009), Errata 2 (Oct 2012) Amendment by American Petroleum Institute, 10/01/2012
API 11AX Addendum 2 Addendum to Specification for Subsurface Sucker Rod Pumps and Fittings, 12th Edition Amendment by American Petroleum Institute, 10/01/2012
API RP 85 Addendum Addendum to Recommended Practice 85, Use of Subsea Wet-gas Flowmeters in Allocation Measurement Systems Amendment by American Petroleum Institute, 01/01/2013
API Spec 6A Addendum 2 Addendum 2 to Specification for Wellhead and Christmas Tree Equipment, Twentieth Edition (ISO 10423:2009 Modification) Amendment by American Petroleum Institute, 11/01/2012
API Spec 6D Addendum 3 Addenda 3 to Specification for Pipeline Valves, Twenty-third Edition (Identical to ISO 14313:2007) Amendment by American Petroleum Institute, 10/01/2012
API Spec 9A Errata 1 Errata for Specification for Wire Rope Amendment by American Petroleum Institute, 10/01/2012
API MPMS Chapter 20.1 Addendum Addendum to Allocation Measurement of Oil and Natural Gas: Allocation Measurement Amendment by American Petroleum Institute, 01/01/2013