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Standards Addenda & Errata

Addenda (amendments) and errata for published API standards are available via the API Publications Store.

  • Simply visit the store and enter the API publication number in the search box at the top right of the webpage.
  • Then, scroll down to the "Amendments & Errata" section for the document.
  • Spec Q1, Specification for Quality Management System Requirements for Manufacturing Organizations for the Petroleum and Natural Gas Industry, Ninth Edition, June 2013
    • Errata 2, March 2014
  • RP 2A-WSD, Recommended Practice for Planning, Designing and Constructing Fixed Offshore Platforms-Working Stress Design, 21st Edition, December 2000
    • Errata and Supplement 3, October 2007
  • Spec 2C, Offshore Pedestal-mounted Cranes, 7th Edition, March 2012
    • Errata, March 2013
  • RP 2D, Operation and Maintenance of Offshore Cranes, Seventh Edition, December 2014
    • Errata, August 2015
  • RP 2GEO/ISO 19901-4, Geotechnical and Foundation Design Considerations, 1st Edition, April 2011
    • Addendum 1, October 2014
  • Bull 2INT-MET, Interim Guidance on Hurricane Conditions in the Gulf of Mexico, May 2007
    • Errata, October 2007
  • RP 2MOP/ISO 19901-6, Marine Operations, First Edition, July 2010
    • Errata, April 2015
  • RP 2N, Recommended Practice for Planning, Designing, and Constructing Structures and Pipelines for Arctic Conditions, Second Edition, December 1995
    • Errata, December 2009
  • RP 2RD, Design of Risers for Floating Production Systems (FPSs) and Tension-Leg Platforms (TLPs), 1st Edition, June 1998
    • Errata, June 2009
  • RP 2SK, Design and Analysis of Stationkeeping Systems for Floating Structures, 3rd Edition, October 2005
    • Addendum, May 2008
  • RP 2SM, Recommended Practice for Design, Manufacture, Installation, and Maintenance of Synthetic Fiber Ropes for Offshore Mooring, 1st Edition, March 2001
    • Addendum, May 2007
  • Bull 2V, Design of Flat Plate Structures, 3rd Edition, June 2004
    • Errata, March 2008
  • RP 4G, Operation, Inspection, Maintenance, and Repair of Drilling and Well Servicing Structures, Fourth Edition, April 2012
    • Errata, September 2013
  • RP 5A3/ISO 13678, Recommended Practice on Thread Compounds for Casing, Tubing, Line Pipe, and Drill Stem Elements, 3rd Edition, November 2009
    • Errata, April 2011
  • RP 5A5/ISO 15463, Field Inspection of New Casing, Tubing, and Plain-end Drill Pipe, Seventh Edition, June 2005
    • Errata, December 2009
  • RP 5B1, Threading, Gauging, and Thread Inspection of Casing, Tubing, and Line Pipe Threads, 5th Edition, August 1999
    • Addendum, September 2004
  • TR 5C3/ISO 10400:2007, Technical Report on Equations and Calculations or Casing, Tubing, and Line Pipe Used as Casing or Tubing; and Performance Properties Tables for Casing and Tubing, First Edition, December 2008
    • Addendum, October 2015
  • Spec 5CRA/ISO 13680, Specification for Corrosion Resistant Alloy Seamless Tubes for Use as Casing, Tubing and Coupling Stock, 1st Edition, February 2010
    • Errata, August 2, 2011
  • Spec 5CT, Specification for Casing and Tubing, 9th Edition, July 2011
    • Errata, September 2012
  • Spec 5L, Specification for Line Pipe, Forty-fifth Edition, December 2012
    • Errata 1, April 2015
  • Spec 5LC, CRA Line Pipe, Fourth Edition, March 2015
    • Errata, October 2015
  • Spec 5LCP, Specification for Coiled Line Pipe, 2nd Edition, October 2006
    • Errata, July 2007
  • Std 5T1, Imperfection Terminology, 10th Edition, November 1996
    • Addendum, September 2003
  • RP 5UE, Recommended Practice for Ultrasonic Evaluation of Pipe Imperfections, 2nd Edition, June 2005
    • Addendum 1, April 2009
  • Spec 6A, Specification for Wellhead and Christmas Tree Equipment, Twentieth Edition, October 2010
    • Addendum 3, March 2013
    • Errata 7, December 2014
    • Errata 8, February 2016
  • Std 6ACRA, Age-hardened Nickel-based Alloys for Oil and Gas Drilling and Production Equipment, First Edition, August 2015
    • Errata, October 2015
  • Std 6AV2, Installation, Maintenance, and Repair of Surface Safety Valves and Underwater Safety Valves Offshore, First Edition, March 2014
    • Errata 1, August 2014
  • Spec 6A718, Specification of Nickel Base Alloy 718 (UNS NO7718) for Oil and Gas Drilling and Production Equipment, Second Edition, December 2009
    • Errata 1, April 2010
  • Spec 6D, Specification for Pipeline and Piping Valves, Twenty-fourth Edition, August 2014
    • Addendum 1, March 2015
    • Errata 6, September 2015
  • Spec 6DSS, Specification for Subsea Pipeline Valves, Second Edition, December 2009
    • Errata 2, November 2010
  • Spec 6FA, Specification for Fire Test for Valves, Third Edition, April 1999
    • Errata, December 2006
    • Errata, December 2008
  • Spec 6FB, Fire Test for End Connections, 3rd Edition, May 1998
    • Errata/Supplement, December 2006
  • Spec 6FC, Specification for Fire Test for Valves With Automatic Backseats, 3rd Edition, April 1999
    • Errata, December 2008
  • Spec 6H, Specification for End Closures, Connectors, and Swivels, 2nd Edition, May 1998
    • Errata, December 2008
  • Std 6X, Design Calculations for Pressure-containing Equipment, First Edition, March 2014
    • Errata 1, May 2014
  • Spec 7-1, Specification for Rotary Drill Stem Elements, 1st Edition, March 2006
    • Addendum 1, March 2007
    • Addendum 2, August 2009
    • Addendum 3, April 2011
  • Spec 7-2, Specification for Threading and Gauging of Rotary Shouldered Thread Connections, 1st Edition, June 2008
    • Addendum 1, December 2010
  • Spec 7F, Oil Field Chain and Sprockets, 8th Edition, November 2012
    • Errata, May 2013
  • RP 7G, Drill Stem Design and Operating Limits, 16th Edition, August 1998
    • Errata, May 2000
    • Addendum 1, November 2003
    • Addendum 2, September 2009
  • RP 7G-2/ISO 10407-2, Recommended Practice for Inspection and Classification of Used Drill Stem Elements, First Edition, August 2009
    • Errata 1, October 2009
  • RP 7HU1, Safe Use of 2-inch Hammer Unions for Oilfield Applications, First Edition, May 2009
    • Errata, February 2014
  • Spec 7K, Drilling and Well Servicing Equipment, Fifth Edition, June 2010
    • Errata, August 2010
  • RP 7L, Procedures for Inspection, Maintenance, Repair, and Remanufacture of Drilling Equipment, 1st Edition, December 1995
    • Addendum 1, February 2006
    • Addendum 2, March 2006
  • Spec 8C, Drilling and Production Hoisting Equipment (PSL 1 and PSL 2), Fifth Edition, April 2012
    • Errata, May 2014
  • Spec 9A, Specification for Wire Rope, 26th Edition, May 2011
    • Errata, October 2012
  • RP 9B, Application, Care, and Use of Wire Rope for Oil Field Service, 13th Edition, October 2011
    • Errata 2, January 2013
  • Spec 10A, Specification for Cements and Materials for Well Cementing, 23rd Edition, April 2002
    • Addendum, January 2005
  • RP 10B-2/ISO 10426-2, Recommended Practice for Testing Well Cements, 1st Edition, July 2005
    • Errata, June 2006
    • Errata, January 2007
  • RP 10F, Recommended Practice for Performance Testing of Cementing Float Equipment, 3rd Edition, April 2002
    • Errata, December 2003
  • RP 11AR, Recommended Practice for Care and Use of Subsurface Pumps, Fourth Edition, June 2000, Reaffirmed April 2008
    • Errata, December 2013
  • Spec 11AX, Specification for Subsurface Sucker Rod Pumps and Fittings, Twelfth Edition, June 2006
    • Addendum 2, October 2012
  • Spec 11B, Specification for Sucker Rods, Polished Rods and Liners, Couplings, Sinker Bars, Polished Rod Clamps, Stuffing Boxes, and Pumping Tees, Twenty-seventh Edition, May 2010
    • Errata 2, February 2011
  • Spec 11E, Specification for Pumping Units, Nineteenth Edition, November 2013
    • Errata, August 2015
  • Spec 13A, Specification for Drilling Fluids Materials, Eighteenth Edition, February 2010
    • Errata 3, July 2015
  • RP 13B-1, Recommended Practice for Field Testing Water-based Drilling Fluids, Fourth Edition, March 2009
    • Errata 1, August 2014
  • RP 13B-2, Field Testing Oil-based Drilling Fluids, Fifth Edition, April 2014
    • Errata 1, August 2014
  • RP 13C, Recommended Practice on Drilling Fluids Processing Systems Evaluation, 3rd Edition, December 2004
    • Errata, April 2005
  • Spec 14A, Subsurface Safety Valve Equipment, Twelfth Edition, January 2015
    • Errata, July 2015
  • RP 14B, Design, Installation, Repair and Operation of Subsurface Safety Valve Systems, Fifth Edition, October 2005
    • Errata, November 2010
  • Spec 15HR, Specification for High Pressure Fiberglass Line Pipe, 3rd Edition, August 2001
    • Addendum, November 2004
    • Errata, February 2007
    • Errata, January 2008
  • Spec 16A, Specification for Drill-through Equipment, 3rd Edition, June 2004
    • Errata/Supplement, November 2004
  • Spec 16C, Choke and Kill Equipment, Second Edition, March 2015
    • Errata, July 2015
    • Errata 2, November 2015
    • Errata 3, February 2016
  • Spec 16F, Specification for Marine Drilling Riser Equipment, First Edition, August 2004
    • Addendum 2, November 2014
  • RP 17A/ISO 13628-1, Design and Operation of Subsea Production Systems—General Requirements and Recommendations, Fourth Edition, January 2006
    • Addendum 1, December 2010
  • Spec 17D/ISO 13628-4, Design and Operation of Subsea Production Systems—Subsea Wellhead and Tree Equipment, Second Edition, May 2011
    • Errata 7, August 2015
    • Addendum, September 2015
  • RP 17H, Remotely Operated Tools and Interfaces on Subsea Production Systems, Second Edition, June 2013
    • Errata, January 2014
  • Spec 17L1, Specification for Flexible Pipe Ancillary Equipment, First Edition, March 2013
    • Errata 2, November 2015
  • Spec 17J/ISO 13628-2, Specification for Unbonded Flexible Pipe, Third Edition, July 2008
    • Errata, February 2009
    • Errata 2, August 2010
  • API RP 17V, Recommended Practice for Analysis, Design, Installation, and Testing of Safety Systems for Subsea Applications, First Edition, February 2015
    • Errata, July 2015
  • API RP 19B, Evaluation of Well Perforators, Second Edition, September 2006, Reaffirmed April 2011
    • Addendum 2, December 2014
  • ANSI/API RP 19D, Measuring the Long-term Conductivity of Proppants, 1st Edition, May 2008
    • Errata, July 2008
  • API Spec 19G1, Side-pocket Mandrels, First Edition, May 2010
    • Errata, December 2014
  • API Spec 20A, Carbon Steel, Alloy Steel, Stainless Steel, and Nickel Base Alloy Castings for Use in the Petroleum and Natural Gas Industry, First Edition, March 2012
    • Addendum 2, April 2015
    • Errata 1, August 2015
  • API Spec 20B, Open Die Shaped Forgings for Use in the Petroleum and Natural Gas Industry, First Edition, April 2013
    • Errata, December 2013
  • API Spec 20C, Closed Die Forgings for Use in the Petroleum and Natural Gas Industry, First Edition, October 2009
    • Addendum 1, July 2014
  • API Spec 20E, Alloy and Carbon Steel Bolting for Use in the Petroleum and Natural Gas Industries, First Edition, August 2012
    • Errata, October 2014
  • API RP 65, Cementing Shallow Water Flow Zones in Deep Water Wells, 1st Edition, September 2002
    • Errata, August 2003
  • API RP 92U, Underbalanced Drilling Operations, First Edition, November 2008
    • Addendum 1, November 2015
  • API/IP Spec 1581, Specifications and Qualification Procedures for Aviation Jet Fuel Filter/Separators, 5th Edition, July 2002
    • Addendum, December 2006
  • API RP 1626, Storing and Handling Ethanol and Gasoline-ethanol Blends at Distribution Terminals and Filling Stations, Second Edition, December 2007
    • Errata, February 2011
  • MPMS Chapter 2.2E, Petroleum and Liquid Petroleum Products—Calibration of Horizontal Cylindrical Tanks, Part 1: Manual Methods, First Edition, April 2004
    • Errata, November 2009
  • MPMS Chapter 3.6, Tank Gauging—Measurement of Liquid Hydrocarbons by Hybrid Tank Measurement, First Edition, February 2001
    • Errata, September 2005
  • API MPMS Chapter 4.2, Proving Systems—Displacement Provers, Third Edition, September 2003
    • Addendum, February 2015
  • MPMS Chapter 4.5, Master Meter Provers, Third Edition, November 2011
    • Errata, June 2014
  • MPMS Chapter 4.6, Proving Systems—Pulse Interpolation, Second Edition, May 1999
    • Errata, April 2007
  • MPMS Chapter 5.1, General Considerations for Measurement by Meters, Fourth Edition, October 2005
    • Errata 2, June 2011
  • MPMS Chapter 5.3, Metering—Measurement of Liquid Hydrocarbons by Turbine Meters, Fifth Edition, September 2005
    • Addendum, July 2009
  • MPMS Chapter 5.4, Accessory Equipment for Liquid Meters, 4th Edition, September 2005
    • Errata, May 2015
  • MPMS Chapter 5.8, Measurement of Liquid Hydrocarbons by Ultrasonic Flow Meters, Second Edition, November 2011
    • Errata, February 2014
  • MPMS Chapter 7, Temperature Determination, First Edition, June 2001
  • Addendum 1, October 2011
  • MPMS Chapter 8.3, Sampling—Standard Practice for Mixing and Handling of Liquid Samples of Petroleum and Petroleum Products, First Edition, October 1995
    • Errata, March 1996
  • MPMS Chapter 10.4, Determination of Water and/or Sediment in Crude Oil by the Centrifuge Method (Field Procedure), Fourth Edition, October 2013
    • Errata, March 2015
  • MPMS Chapter 11.1, Temperature and Pressure Volume Correction Factors for Generalized Crude Oils, Refined Products, and Lubricating Oils, May 2004
    • Addendum, September 2007
  • MPMS Chapter 11.2—Part 4—Temperature Correction for the Volume of NGL and LPG Tables 23E, 24E, 53E, 54E, 59E, and 60E, First Edition, September 2007
    • Errata, September 2011
  • MPMS Chapter 11.4—Properties of Reference Materials, Part 1—Density of Water and Water Volumetric Correction Factors for Water Calibration of Volumetric Provers, First Edition, December 2003
    • Errata, September 2011
  • MPMS Chapter 11.5—Density/Weight/Volume Intracoversion, Part 1—Conversions of API Gravity at 60 °F, First Edition, March 2009
    • Errata, September 2011 (Updated, September 2013)
  • MPMS Chapter 12, Calculation of Petroleum Quantities
    • Addendum, August 2007
  • MPMS Chapter 12.1.1/EI HM 1 Part 1, Calculation of Static Petroleum Quantities—Upright Cylindrical Tanks and Marine Vessels, 3rd Edition, April 2012
    • Errata, May 2015
  • MPMS Chapter 12.2, Calculation of Petroleum Quantities Using Dynamic Measurement Methods and Volumetric Correction Factors
    • Part 1, Introduction, Second Edition, May 1995
    • Part 4, Calculation of Base Prover Volumes by Waterdraw Method, First Edition, December 1997
    • Part 5, Base Prover Volume Using Master Meter Method, Second Edition, September 2001
      • Errata, July 2009
  • MPMS Chapter 13.1, Statistical Concepts and Procedures in Measurements, First Edition, June 1985
    • Errata, July 2013
  • MPMS Chapter 13.2, Statistical Aspects of Measuring and Sampling—Methods of Evaluating Meter Proving Data, First Edition, November 1994
    • Errata, October 2015
  • MPMS Chapter 14.3.1, Orifice Metering of Natural Gas and Other Related Hydrocarbon Fluids—Concentric, Square-edged Orifice Meters Part 1: General Equations and Uncertainty Guidelines, Fourth Edition, September 2012
    • Errata, July 2013
  • MPMS Chapter17.9/EI HM 49, Vessel Experience Factor (VEF), Second Edition, May 2012
    • Addendum, January 2014
  • MPMS Chapter 17.10.2, Measurement of Refrigerated and/or Pressurized Cargoes on Board Marine Gas Carriers, Part 2—Liquefied Petroleum and Chemical Gases, First Edition, November 2007
    • Errata. September 2010
  • MPMS Chapter 19.4, Evaporative Loss Reference Information and Speciation Methodology, Third Edition, October 2012
    • Addendum 1, November 2013
  • MPMS Chapter 20.1, Allocation Measurement, First Edition, August 1993
    • Addendum, January 2013
  • Recommended Practice 85, Use of Subsea Wet-gas Flowmeters in Allocation Measurement Systems, First Edition, March 2003
    • Addendum, January 2013
  • RP 1102, Steel Pipelines Crossing Railroads and Highways, Seventh Edition, December 2007
    • Errata 5, March 2014
  • Std 1104, Welding of Pipelines and Related Facilities, 21st Edition, September 2013
    • Addendum 1, July 2014
    • Errata 3, July 2014
  • RP 1109, Marking Liquid Petroleum Pipeline Facilities, Fourth Edition, October 2010
    • Errata, November 2010
  • RP 1114, Recommended Practice for the Design of Solution-Mined Underground Storage Facilities, First Edition, June 1994
    • Errata, July 2007
  • RP 1117, Recommended Practice for Movement of In-service Pipelines, 3rd Edition, July 2008
    • Errata 1, December 2008
    • Errata 2, August 2009
  • RP 1160, Managing System Integrity for Hazardous Liquid Pipelines, Second Edition, September 2013
    • Errata 1, September 2013
  • RP 1161, Recommended Practice for Pipeline Operator Qualification
    • Updated Covered Task Lists
  • RP 1166, Excavation Monitoring and Observation, First Edition, November 2005
    • Errata, December 2006
  • RP 500, Recommended Practice for Classification of Locations for Electrical Installations at Petroleum Facilities Classified as Class I, Division 1 and Division 2, Third Edition, December 2012
    • Errata, January 2014
  • Std 521, Pressure-relieving and Depressuring Systems, 5th Edition, January 2007
    • Errata, June 2007
    • Addendum, May 2008
  • Std 526, Flanged Steel Pressure-relief Valves, 6th Edition, April 2009
    • Errata, May 2009
    • Errata 2, October 2012
  • Std 600, Steel Gate Valves—Flanged and Butt-welding Ends, Bolted Bonnets, 12th Edition, September 2009
    • Errata, November 2009
  • Std 607, Testing of Valves—Fire Type-testing Requirements, 5th Edition, June 2005
    • Errata, November 2008
  • Std 610, Centrifugal Pumps for Petroleum, Petrochemical and Natural Gas Industries, 11th Edition, September 2010
    • Errata, July 2011
  • Std 611, General-purpose Steam Turbines for Petroleum, Chemical, and Gas Industry Services, 5th Edition, March 2008
    • Errata, May 2008
  • Std 613, Special Purpose Gear Units for Petroleum, Chemical and Gas Industry Services, 5th Edition, February, 2003
    • Errata, November 2006
  • Std 614, Lubrication, Shaft-sealing and Oil-control Systems and Auxiliaries, 5th Edition, April, 2008
    • Errata, May 2008
  • Std 617, Axial and Centrifugal Compressors and Expander-compressors for Petroleum, Chemical and Gas Industry Services, 7th Edition, July 2002
    • Errata, June 2003
  • Std 618, Reciprocating Compressors for Petroleum, Chemical, and Gas Industry Services, Fifth Edition, December 2007
    • Errata, November 2009
    • Errata 2, July 2010
  • Std 620, Design and Construction of Large, Welded, Low-pressure Storage Tanks, 12th Edition, October 2013

    • Addendum 1, November 2014
  • Std 625, Tank Systems for Refrigerated Liquefied Gas Storage, 1st Edition, August 2010

    • Addendum 1, July 2013
    • Addendum 2, November 2014
  • Std 650, Welded Steel Tanks for Oil Storage, 12th Edition, March 2013
    • Errata 2, December, 2014
    • Addendum 2, January 2016
  • Std 672, Packaged, Integrally Geared Centrifugal Air Compressors for Petroleum, Chemical and Gas Industry Services, 4th Edition, March 2004
    • Errata, October 2007
    • Errata 2, July 2010
  • Std 673, Centrifugal Fans for Petroleum, Chemical and Gas Industry Services, 2nd Edition, January 2002
    • Errata, October 2002
  • Std 674, Positive Displacement Pumps—Reciprocating, Third Edition, December 2010
    • Errata 2, April 2015
  • Std 675, Positive Displacement Pumps—Controlled Volume for Petroleum, Chemical, and Gas Industry Services, Third Edition, November 2012
    • Errata 2, April 2015
  • Std 682, Pumps—Shaft Sealing Systems for Centrifugal and Rotary Pumps, 3rd Edition, September 2004
    • Errata, November 2006
  • Std 685, Sealless Centrifugal Pumps for Petroleum, Heavy Duty Chemical, and Gas Industry Services, 1st Edition, October 2000
    • Errata, October 2007
  • RP 932-B, Design, Materials, Fabrication, Operation, and Inspection Guidelines for Corrosion Control in Hydroprocessing Reactor Effluent Air Cooler (REAC) Systems, Second Edition, March 2012
    • Errata, January 2014
  • RP 934-A, Materials and Fabrication of 2 1/4Cr-1Mo, 2 1/4Cr-1Mo-1/4V, 3Cr-1Mo, and 3Cr-1Mo-1/4V Steel Heavy Wall Pressure Vessels for High-temperature, High-pressure Hydrogen Service, Second Edition, May 2008
    • Addendum 2, March 2012
  • RP 1111, Recommended Practice for the Design, Construction, Operation, and Maintenance of Offshore Hydrocarbon Pipelines (Limited State Design), Fourth Edition, December 2009
    • Errata, May 2011
  • Std 2000, Venting Atmospheric and Low-pressure Storage Tanks: Nonrefrigerated and Refrigerated, 5th Edition, April 1998
    • Errata, November 1999