The EPA just finalized significant revisions to the Ethylene Oxide NESHAP rule (40 CFR Pt 63, Subpart O) governing commercial sterilizers that use EtO. They have also created PS-19 (40 CFR 60, Appendix B) and QA Procedure 7 (40 CFR 60, Appendix F) for certifying and maintaining continued compliance with ethylene oxide CEMS at the stack. 

These updates fundamentally change the way sterilizers maintain environmental compliance, requiring upgrades and new monitoring at facilities, and greatly reducing emissions of ethylene oxide in and around facilities. Picarro started preparing for this moment even before the draft language was released in early 2023, leveraging decades of expertise in emissions measurement systems. There is simply no better solution for real-time monitoring of ethylene oxide than Picarro’s ethylene oxide managed service suite featuring PS-19 compliant CEMS, Workplace, Fenceline, and Mobile systems.

Our whitepapers and industry testimonials reflect the trust and confidence we’ve developed with industry stakeholders, and the power of Picarro’s technology to demonstrate compliance. Our Environmental Solutions team has the expertise to guide customers through the changing regulatory landscape, and our managed services take the challenge out of maintenance and compliance.