About SEMS Certificates

The Center for Offshore Safety promotes Safety and Environmental Management Systems which deliver safe and reliable operations and operational integrity.

The Center for Offshore Safety (COS) plays a critical role in SEMS audits by accrediting qualified third-party Audit Service Providers (ASP), that audit a company's SEMS and its implementation at their facilities  in accordance with COS-2-03, API RP 75 and country requirements such as the U.S. Bureau of Safety and Environmental Enforcement’s (BSEE) SEMS requirements. SEMS certificates are available to both COS members and non-members.

Upon completion of a SEMS audit by an independent COS-accredited ASP, and resolution of necessary corrective actions, companies can receive a certificate demonstrating that they meet the requirements of COS and API Recommended Practice (RP) 75.

Operators, Drillers, Contractors and Other Service Providers

Currently for companies on the US Outer Continental Shelf, only oil and gas operators are regulatorily required by BSEE to implement a SEMS and have it audited by an accredited ASP. Drilling contractors, offshore service providers, and other contract organizations must ensure their program integrates effectively with the operator’s SEMS. To differentiate their company, organizations can voluntarily have their SEMS independently audited by a COS-accredited ASP and obtain a COS SEMS Certificate.

SEMS certificates are available to all offshore energy operations, including renewables, whether inside or outside the United States. To qualify the company must have a SEMS audit performed by a COS- accredited ASP, resolve their findings through appropriate corrective/preventive action, and have completion of their actions verified by an accredited ASP. Requirements for COS SEMS Certificates (COS-2-05) gives all offshore energy companies the opportunity to receive a SEMS Certificate if they meet the requirements of the document.


Find a COS-accredited Audit Service Provider

COS provides a list of COS-accredited companies that are authorized to conduct SEMS audits and issue SEMS certificates.