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Purchase API Standards & Software

API offers over 1,000 publications to help the natural gas and oil industry safely, efficiently, and responsibly supply energy to billions of people around the world.  Here is how you or your organization can obtain them today:

Publications Bookstore/Catalog: Purchase single-user copies of individual standards and download the API Publications Catalog.

Subscription Service:  Gain organization-wide access to API Standards with a subscription on API's standard subscription service.  This digital platform gives you the latest updates, references, and comparison tools so you can ensure safety, compliance, and interoperability.  Complete the form on this tab to receive information about how getting your standard's online can help your organization today, and download the API Subscription Service fact sheet.

Authorized Distributors:  Verify that you are purchasing API Standards through an authorized distributor to ensure you will obtain full, accurate, and current editions.

Software Products:  Learn about API’s software product offerings and where you can purchase them online.

If you have any questions about purchasing a document, please contact

Order from the API Publications Store

Below is the 2021 catalog of API publications, which include standards, data products, and software.  You may also choose to view the catalog sections by industry segment.


2021 Publications Catalog (Full) 

Catalog Sections by Industry Segment

Exploration & Production

Petroleum Measurement




Safety and Fire Protection

Health and Environmental Issues

API Data Products

Policy and Economic Studies

Communications and Education Outreach

Translated Publications

Historical Publications

subscription Inquiry Form

API now offers a direct subscription service to the standards your organization needs via API Compass.

Access standards, mitigate risk with the latest change management tools like new standards alerts, red-lining capability, and organization-wide annotations, analyze available standards, and make gap analysis notes to reduce reliance on internal standards (increasing efficiencies), and support other API initiatives through this direct licensing platform. Learn more about API's standard's subscription service.

Subscribers can sign up by industry area or for the complete API collection. The most used standards are also available in two convenient formats (PDF and HTML/online).

Complete the form below and find out how easy it is to obtain a customized subscription to help reduce risk and save your organization time and money.

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SAI Global

BSB Edge Private Limited

  • Please contact BSB Edge at + 91 11 2461 1991 & + 91 11 2463 4222, via e-mail at or via website

Beuth Verlag GmbH (Distribution in Germany)

  • International Customer Service by phone at + 49 30 2601 2361, via email at, or via website

Afnor Editions (Distribution in France)

  • Contact AFNOR Publishing Standards Section at + or via email at, or via website

Brazilian Association of Technical Standards (ABNT) (Distribution in Brazil)

  • Contact ABNT by phone at + 55 11 3017 3631, fax at + 55 11 3017 3650, or via website

Information Company KODEKS / Information Network TECHEXPERT (Distribution in Russia)

  • Contact Center of Foreign and International Standards at + 7.812.740.78.96 (phone), via email at, or via website

Normdocs (Distribution in Russia)

  • Contact Normdocs at +7 812 309 7859 or +7 495 223 4676 (phone), via email at, or via website

Royal Netherlands Standardization Institute (NEN) (Distribution in The Netherlands)

KazStandard (Distribution in Kazakhstan)

  • Contact KazStandard at +7 7172 98-06-38 (phone), via email at or via website

Research Institute of Petroleum Exploration & Development Co., Ltd., China National Petroleum Corporation (Distribution in China)

Measurements Chapter 11.1 Volume Correction Factors

Quorum Software is the only distributor that is licensed by API to develop, market, and support the API MPMS Chapter 11.1 Code (Temperature and Pressure Volume Correction Factors for Generalized Crude Oils, Refined Products, Special Applications, and Lubricating Oils). This information is available in equations relating volume to pressure which contains physical data that has direct application to volumetric measurements of liquid hydrocarbon.


API Technical Data Book

The API Technical Data Book, co-published and updated annually by the American Petroleum Institute and EPCON International, is the source for the latest, most accurate technical data, methods, and standards on petroleum refining officially sanctioned by the American Petroleum Institute.


SANGEA 4.2 GHG Emissions Estimating System

SANGEA™ is an emissions estimation software tool for the oil and natural gas industry to quantify greenhouse gas (GHG) emissions and standardize emissions reporting. It is based on the 2009 API Compendium of Greenhouse Gas Emissions Methodologies for the Oil and Gas Industry and US EPA Mandatory Reporting Rule Subparts C, P, W and Y, including recent updates (RY2015) to US EPA MRR reporting requirements. The software also includes US EPA AP-42 emission factors for criteria pollutants.


API RBI Software

API RP 580 is a Risk-Based Inspection document that identifies the basic elements for developing, implementing, and maintaining an RBI program. API RP 581 documents a quantitative approach to implementing RBI. Its methodology involves a rigorous quantitative assessment of the PoF (Probability of Failure) and the CoF (Consequence of Failure) associated with each equipment item in a particular process unit

The Equity Engineering Group, Inc.’s software is the only API-branded RBI software product that is compliant with API RP (Recommended Practice) 580.


E&P Tanks

As of December 31, 2018, the E&P TANKS v3.0 software is no longer distributed.

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