Enforcement
Air Enforcement Policy, Guidance and Publications
This section provides policy and guidance documents related to enforcement of pollution from mobile and stationary sources of air pollution.
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On this page:
- Newsletters
-
Mobile Sources of Air Pollution
- General Mobile Source Policy and Guidance
- Vehicles and Engines
- Fuels
-
Stationary Sources of Air Pollution
- General Stationary Source Policy and Guidance
- New Source Review
- State Implementation Plan
Newsletters
Mobile sources of air pollution
General
- Civil Penalty Policy for Administrative Hearings (PDF) (21 pp, 962K) - (1/14/93)
Vehicles/Engines
- Penalty Policy for Vehicle and Engine Emissions Certification Requirements (PDF) (33 pp, 1MB) - (1/16/09)
- Frequently Asked Question About EPA Requirements for Motorcycle Imports (PDF) (2 pp, 80K) - (4/8/05)
- Sale and use aftermarket catalytic converters for Vehicles Equipped with On-Board Diagnostic (OBD-II) Systems (PDF) (2 pp, 846K) - (9/30/04)
- No enforcement action will be taken for catalyst-equipped motorcycles that are not fitted with inlet filler restrictors (PDF) (2 pp, 60K) - (4/1/02)
- Extension of the Addendum to Memo 1A Mobile Source Enforcement - Letter to National Propane Gas Association (PDF) (2 pp, 271K) - (1/24/02)
- Extension of the Addendum to Memo 1A Mobile Source Enforcement - Letter to Speaker of the House for Arizona (PDF) (6 pp, 16K) - (5/16/00)
- Revision to Addendum to Mobile Source Enforcement Memorandum 1A, Revised Tampering Enforcement Policy for Alternative Fuel Conversions (PDF) (6 pp, 826K) - (6/1/98)
- Extension of the Addendum to Memo 1A Mobile Source Enforcement "Option Three" Deadline to April 24, 1998 (letter to Natural Gas Vehicle Coalition) (PDF) (1 pp, 9K) - (3/31/98)
- Addendum to memo 1A: Tampering Enforcement Policy for Alternative Fuel Aftermarket Conversions (PDF) (6 pp, 22K) - (9/4/97)
- EPA Kit Car Policy - (7/8/94)
- Fact Sheet: Exhaust System Repair Guidelines (PDF) (6 pp, 292K) - (3/13/91)
- Engine Switching Fact Sheet (PDF) (3 pp, 12K) - (3/13/91)
- Sale and Use of Aftermarket Catalytic Converters (PDF) (7 pp, 785K) - (8/5/88)
- Interim Tampering Enforcement Policy (PDF) (5 pp, 586K) - (6/25/74)
Fuels
- Interim Guidance on the Non-Availability of Compliant Fuel Oil for the North American (PDF) (9 pp, 324K ) - (6/27/11)
- Enforcement of MARPOL Annex VI Memorandum of Understanding (PDF) (7pp, 2MB ) - (6/27/11)
- Enforcement of MARPOL Annex VI Joint Letter (PDF) (5pp, 1MB) - (06/27/11)
- Questions and Answers to the Clean Diesel Fuel Rules (PDF) (135 pp, 888K) - (7/25/06)
- Refiners may use two percent tolerance rule to determine RFG compliance (PDF) (3 pp, 337K) - (2/6/02)
- Guidance Documents on Reformulated Gasoline - (2/16/94)
- Interim Diesel Civil Penalty Policy (PDF) (12 pp, 520K) - (2/8/94)
- 1993 Volatility Question and Answer Document (PDF) (71 pp, 123K) - (11/1/93)
- 1993 Diesel Desulfurization Question and Answer Document (PDF) (36 pp, 1MB) - (8/5/93)
- Volatility Civil Penalty Policy (PDF) (13 pp, 576K) - (12/1/89)
Stationary sources of air pollution
General
- Clean Air Act Stationary Source Civil Penalty Policy (PDF) (178 pp, 4MB) - (10/25/91)
- The Timely and Appropriate (T and A) Enforcement Response to High Priority Violations (HPVs) Policy (PDF) (24 pp, 1MB) - (12/22/98)
- The Timely and Appropriate (T&A) Enforcement Response to High Priority Violations (HPVs) Workbook (PDF) (115 pp, 592K) - (6/23/99)
- Interim Policy and Guidance on the Use of "Credible Evidence" in Air Enforcement Activities (PDF) (5 pp, 15K) - (4/29/97)
- Options for Limiting the Potential to Emit (PTE) of a Stationary Source under Section 112 and Title V of the Clean Air Act (PDF) (49pp, 2MB) - (1/25/95)
- Supplemental Environmental Projects in EPA Settlements Involving Early Reductions under the Clean Air Act (PDF) (2pp, 132K) - (11/1/91)
- Guidance on Use of Section 303 of the Clean Air Act (PDF) (24pp, 1MB) - (9/15/83)
New Source Review (NSR)
- Guidance on Appropriate Injunctive Relief in Major NSR Cases (PDF) (7pp, 20K) - (11/17/98
- Guidance on Limiting Potential to Emit in New Source Permitting (PDF) (25pp, 723K) - (6/13/89)
- Guidance on Enforcement of Prevention of Significant Deterioration Requirements Under the Clean Air Act (PDF) (23pp, 1MB) - (12/14/83)
State Implementation Plan
- Re-Issuance of Clarification - State Implementation Plans (SIPs): Policy Regarding Excess Emissions during Malfunctions, Startup, Shutdown (PDF) (2pp, 103K) - (12/5/01)
- State Implementation Plans: Policy Regarding Excess Emissions During Malfunction, Startup, and Shutdown (PDF) (10pp, 50K) (9/20/99)
- Policy on Excess Emissions During Startup, Shutdown, Maintenance, and Malfunctions (PDF) (10pp, 507K) - (2/15/83)