Wynnewood Refinery has successfully completed its triennial ISO 9001:2015 recertification audit, achieving the rare distinction of zero non-conformances — no major findings, no minor findings, and no observations requiring corrective action. The audit, conducted by an accredited third-party registrar over five days, covered every aspect of the refinery's quality management system from crude oil receipt and process control through product testing, storage, and dispatch.
This cycle's recertification also expanded the scope of Wynnewood's ISO registration to include environmental management for the first time, integrating elements of ISO 14001 into the company's unified management system. The expansion reflects Wynnewood's growing emphasis on environmental performance as renewable fuels production becomes a larger share of total output.
What ISO 9001 Means in Practice
For customers, ISO 9001 certification provides assurance that Wynnewood's quality management system meets internationally recognized standards for consistency, traceability, and continuous improvement. Every batch of fuel produced at Wynnewood is tested against ASTM specifications, and every test result is logged in a quality database that provides full batch traceability from crude receipt through final product certification.
The system also mandates regular internal audits, management reviews, and corrective action procedures — creating a self-improving quality loop that catches deviations before they reach customers.
Environmental Management Integration
The addition of environmental management to the ISO scope means that Wynnewood's environmental monitoring, emissions tracking, wastewater management, and waste disposal procedures are now subject to the same systematic audit discipline as product quality. This integration is particularly important as the company scales up renewable fuels production, which introduces new feedstocks, new process chemistry, and new regulatory requirements.
Continuous Improvement
The audit team noted several areas of particular strength, including Wynnewood's document control system, its laboratory quality assurance program, and the depth of employee engagement in the quality management process. Over 85 percent of refinery employees have received formal quality awareness training in the past 12 months, and the company's suggestion program generated over 200 quality improvement proposals in 2023 alone.
The renewed certification is valid through 2027, with annual surveillance audits scheduled to maintain compliance.