API Spec 10A Addendum 1 Specification for Cements and Materials for Well Cementing, Addendum 1. Amendment by American Petroleum Institute, 01/01/2005
API RP 8B Addendum 2 Recommended Practice for Procedures for Inspections, Maintenance, Repair and Remanufacture of Hoisting Equipment, Addendum Amendment by American Petroleum Institute, 04/01/2005
API Spec 7 Addendum 1 Specification for Rotary Drill Stem Elements, Fortieth Edition, 2004 Addendum Amendment by American Petroleum Institute, 08/01/2004
API RP 4G Errata Errata for Recommended Practice for Use and Procedures for Inspection, Maintenance, and Repair of Drilling and Well Servicing Structures Amendment by American Petroleum Institute, 06/01/2004
API RP 5B Addendum 1 Specification for Threading, Gauging, and Thread Inspection of Casing, Tubing, and Line Pipe Threads (US Customary Units) (Includes 1998 Errata) Amendment by American Petroleum Institute, 03/01/2004
API RP 4G Errata 2 Errata for Recommended Practice for Use and Procedures for Inspection, Maintenance, and Repair of Drilling and Well Servicing Structures Amendment by American Petroleum Institute, 04/01/2005
API RP 13C Errata Recommended Practice on Drilling Fluids Processing Systems Evaluation, Third Edition - Errata Amendment by American Petroleum Institute, 04/01/2005
API 17J Errata Errata to API 17J: Unbonded Flexible Pipe Amendment by American Petroleum Institute, 05/25/2001
API Spec 7 Errata Errata 1 - Specification for Rotary Drill Stem Elements Amendment by American Petroleum Institute, 10/15/1999
API 083 (RS) Octane Requirements of the Motor Vehicle Fleet and Gasoline Grade Sales standard by American Petroleum Institute, 08/01/1996
API Spec 8C Addendum 2 Specification for Drilling and Production Hoisting Equipment (PSL 1 and PSL 2), Fourth Edition / ISO 13535:2000 (Modified), Petroleum and natural gas industries-Drilling and production equipment-Hoisting equipment, Addendum Amendment by American Petroleum Institute, 04/15/2005
API Spec 7 Addendum 2 Specification for Rotary Drill Stem Elements, Fortieth Edition, March 2006 Addendum Amendment by American Petroleum Institute, 03/01/2006