The American Petroleum Institute (API), established in 1919, is the global leader in developing consensus-based standards for the oil and gas industry. Over the past century, API has …

The American Petroleum Institute (API) is the only national trade association that represents all aspects of America’s oil and natural gas industry. Our more than 600 corporate members, …

API represents nearly 600 members advancing oil and gas innovation, safety, and sustainability. Discover our impact—explore who we are today.

Since 1989, API’s Individual Certification Programs (ICP) have provided the petroleum and petrochemical industries with an independent and unbiased way to evaluate the knowledge …

Nov 17, 2025 · The API Portal is your login for everything you do with API including the Webstore, the ICP Portal, myCerts, Engine Oil, Diesel Exhaust and Energy Excellence applications.

These enhancements are designed to make it easier to pay for exams, recertifications, and API standards—all in one seamless process. No action is necessary now. Stay tuned as we roll …

Other questions? Please visit http://www.api.org/ICP and navigate to the appropriate program page to obtain the correct effectivity sheet for your recertification program.

Below is the 2025 catalog of API publications, which includes standards, data products, and software. You may choose to view the full catalog or by industry segment.

Existing Users: If you know your password and need to update your email, please log in first. If you cannot access a previous account, instead of creating a new one, please email …

The API Webstore offers the purchasing of individual API Standards, Recommended Practices, Technical Documents and more. Plus, create an account today and receive notifications on …