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Off-Site Waste and Recovery Operations (OSWRO): National Emission Standards for Hazardous Air Pollutants (NESHAP)

Rule Summary

The 2015 final rule implements the Clean Air Act (CAA) section 112(d) to control hazardous air pollutants (HAP) emissions at major sources that receive certain wastes, used oil, and used solvents from off-site locations for storage, treatment, recovery, or disposal.

Off-Site Waste and Recovery Operations (OSWRO) facilities subject to the final rule are required to control emissions of organic HAP by meeting emissions limitations and work practice standards reflecting the application of maximum achievable control technology (MACT) and amendments made as a result of the risk and technology review (RTR). The final rule applies to OSWRO affected sources which includes tanks, surface impoundments, containers, oil- water separators, individual drain systems and other material conveyance systems, process vents, and equipment leaks.

In May 2015 the EPA was petitioned for reconsideration of certain aspects of the final rule by Eastman Chemical Company and the American Chemistry Council. The EPA granted reconsideration of the issue related to pressure relief devices on February 8, 2016, and denied reconsideration of the issue related to leak detection and repair (LDAR) connector monitoring requirements. The denial was published in the Federal Register on May 16, 2016 (81 FR 30182).

Rule History

01/29/2018 - Off-Site Waste and Recovery Operations (OSWRO):  National Emission Standards for Hazardous Air Pollutants - Final Amendments

08/7/2017 – Off-Site Waste and Recovery Operations (OSWRO):  National Emission Standards for Hazardous Air Pollutants (NESHAP) Proposed Amendments

05/16/2016 – Action Denying a Petition for Reconsideration

03/18/2015 – Final Rule

07/02/2014 – Proposed Rule

01/08/2001 – Final Rule; Technical Corrections and Amendments

07/20/1999 – Proposed Rule & Direct Final Rule

07/01/1996 – Final Rule

10/13/1994 – Proposed Rule

Additional Resources

Off-Site Waste and Recovery Operations: National Emission Standards for Hazardous Air Pollutants (NESHAP) Fact Sheets

2015 Petition for Reconsideration for Off-Site Waste and Recovery Operations Documents

1996 Basis and Purpose Document For The Development Of Final National Emission Standards For Hazardous Air Pollutants For Off Site Waste and Recovery Operations

View the supporting documents in the docket folder to find additional related documents to this rule.

Related Rules

National Emission Standards for Tanks - Level 1

National Emission Standards for Containers

National Emission Standards for Surface Impoundments

National Emission Standards for Individual Drain Systems

National Emission Standards for Hazardous Air Pollutants (NESHAP) for Oil-Water Separators and Organic-Water Separators

Compliance

2000 Implementation Guidance for Off site Waste and Recovery Operations (OSWRO) NESHAP Interrelationships With Other Related EPA Air Rules

1999 Plain Language Implementation Assistance Document For 40 CFR Part 63 Subpart DD (Off-Site Waste And Recovery Operations NESHAP)

1998 National Emission Standards for Hazardous Air Pollutants (NESHAP) from Off-Site Waste and Recovery Operations (OSWRO) Source Identification: List of Sources Potentially Subject to the Rule and How to Find Others