Other Solid Waste Incinerators (OSWI): New Source Performance Standards (NSPS) and Emission Guidelines (EG) for Existing Sources
On this page:
Rule Summary
EPA promulgated new source performance standards (NSPS) and emission guidelines (EG) for new and existing ‘‘other’’ solid waste incineration units (OSWI). The final rules for OSWI units fulfill the requirements of sections 111 and 129 of the Clean Air Act (CAA), which require EPA to promulgate NSPS and emission guidelines for solid waste incineration units. The final rules, which address only the incineration of nonhazardous solid wastes, will protect public health by reducing exposure to air pollution.
Rule History
11/04/2024 - Final Rule Technical Corrections - OSWI Air Curtain Incinerators and Title V Permit Provisions (pdf)
07/25/2024 - Proposed Amendments - OSWI Revisions to Definition
04/17/2024 - Final Rule - OSWI Air Curtain Incinerators and Title V Permit Provisions
05/24/2023 - Proposed Standards of Performance for New Stationary Sources and Emission Guidelines for Existing Sources: Other Solid Waste Incineration Units Review; Withdrawal of Proposed Provision Removing Pyrolysis/Combustion Units (88 FR 36524)
08/31/2020 - Proposed Amendments (85 FR 54178)
01/22/2007 – Notice of Final Action on Reconsideration (72 FR 2620) (pdf) (194 KB)
12/18/2006 – Proposed Rule (71 FR 75816) (pdf) (269 KB)
11/24/2006 – Direct Final Rule (71 FR 67802) (pdf) (164 KB) & Direct Final Rule (71 FR 67832) (pdf) (141 KB)
06/28/2006 – Notice of Reconsideration of Final Rule (71 FR 36726) (pdf) (157 KB)
12/16/2005 – Final Rule (70 FR 74870) (pdf) (376 KB)
12/09/2004 – Proposed Rule (69 FR 71472) (pdf) (377 KB)
11/02/1993 - Notice Listing of Categories of Sources of Other Solid Waste Incineration Units under Section 129 of the Clean Air Act and a Schedule for Promulgation of Regulations (58 FR 58498)
Additional Resources
Fact Sheet: OSWI – Supplemental Proposal to Add a Definition for Rudimentary Combustion Device (pdf) (July 2024)
- Redline/strikeout (RLSO) of subpart EEEE (Proposal) (pdf) (July 2024)
- Redline/strikeout (RLSO) of subpart FFFF (Proposal) (pdf) (July 2024)
Overview Presentation: OSWI - Supplemental Proposal to Add a Definition for Rudimentary Combustion Device (pdf) (August 2024)
Fact Sheet: Other Solid Waste Incinerators – Air Curtain Incinerators and Title V Permit Provisions Final Rule (pdf) (April 2024)
Fact Sheet: Proposed Amendments to Other Solid Waste Incineration Unit Standards (pdf) (August 2020)
View the supporting documents in the docket folder to find additional related documents to this rule.
Related Rules
Compliance
Applicability Determination Index (ADI). The ADI is maintained by EPA's Office of Enforcement and Compliance Assurance (OECA) and provides a data base of memoranda dealing with applicability issues. The database is searchable by Subpart.