American Petroleum Institute (API) Standards

The American Petroleum Institute (API) is a leading organization that develops industry standards for the petroleum, oil, natural gas, and petrochemical sectors. API standards cover a wide range of equipment, materials, engineering practices, and operational procedures, from drilling tools and production systems to pipeline safety and environmental protection.

API standards establish widely recognized technical requirements and best practices to improve operational safety, equipment reliability, product quality, and efficiency throughout the energy industry. Many API standards have been incorporated into state and federal regulations and adopted or referenced by the International Organization for Standardization (ISO), supporting their international recognition and application.

Explore API standards and technical publications on e-Standards Portal to find essential engineering specifications, equipment requirements, and industry guidelines for petroleum and petrochemical operations.