API Certification Certified Companies

Oil and gas industry certification for tanks, piping, and equipment fabricated to API standards.

3 certified companies

API (American Petroleum Institute) certifications and standards govern the design, fabrication, and inspection of equipment used in the oil, gas, and petrochemical industries. Key standards include API 650 (storage tanks), API 620 (low-pressure tanks), API 1104 (pipeline welding), and the API monogram licensing program.

API Certification Certified Companies

API Certification FAQ

What is the API monogram program?

The API monogram program licenses manufacturers to mark their products with the API monogram, indicating that the product was manufactured under a quality system meeting API Spec Q1 and complies with the applicable API product specification. It is widely recognized in the oil and gas industry.

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