Errata to Specification for Wellhead and Tree Equipment, Twenty-First EditionAmendment by American Petroleum Institute, 04/01/2019

Addendum to Seismic Design Procedures and Criteria for Offshore Structures, First EditionAmendment by American Petroleum Institute, 01/01/2019

Valve Inspection and Testing, Tenth Editionstandard by American Petroleum Institute, 10/01/2016

Specification for Quality Programs for the Petroleum and Natural Gas Industrystandard by American Petroleum Institute, 03/01/1999

Safe Welding and Cutting Practices in Refineries, Gasoline Plants, and Petrochemicals Plantsstandard by American Petroleum Institute, 02/01/2002

Specification for Carbon Manganese Steel Plate with Improved Toughness for Offshore Structuresstandard by American Petroleum Institute, 09/01/2001

Addendum 1 Nondestructive Examination Services for Equipment Used in the Petroleum and Natural Gas Industry, First Edition, Includes Addendum 1 (2016)Amendment by

Recommended Practices for Testing Sand Used in Hydraulic Fracturing Operationsstandard by American Petroleum Institute, 12/01/1995

Guide to Advanced Control Systems, First Editionstandard by American Petroleum Institute, 12/01/2000

A Guide to Understanding, Assessment and the Regulation of PAHs in the Aquatic Environmentstandard by American Petroleum Institute,

Topsides Structure, First Editionstandard by American Petroleum Institute, 08/01/2019

Addendum to Threading, Gauging, and Inspection of Casing, Tubing, and Line Pipe Threads, Sixteenth Edition, Includes Errata 1 (2018), Errata 2 (2018),