Toolkit · Environmental

The Air Permit, Emissions Reporting, and Clean Air Act Enforcement Toolkit

42 U.S.C. § 7407

Type
Toolkit
Jurisdiction
National
Date
2025-04-19
Topic
Environmental

Working instruments for air permitting and compliance. The baseline set includes an emissions inventory template, a potential-to-emit worksheet, and a permit condition matrix. The project set includes an applicability memorandum template and a control technology analysis template. The operating set includes a synthetic minor tracking sheet, a deviation log, and a compliance certification package. The enforcement set includes an information request response protocol, a notice of violation response outline, and a penalty mitigation worksheet. A citizen suit notice analysis and an authority quick reference complete it.

The Air Permit, Emissions Reporting, and Clean Air Act Enforcement Toolkit

Environmental > Air Quality and Emissions | Published 19 April 2025 - Updated 12 July 2026 | UpLaw - uplaw.us

How this toolkit is built

Twelve instruments. Bracketed text is for completion.

Three rules organize the set: designation decides the requirements; the analysis must be written before the project; and the violation is frequently the missing record.

Tool 1 — Facility Baseline and Emissions Inventory

Facility: [ ] Location: [ ] Prepared: [ ] By: [ ]

Designations — 42 U.S.C. § 7407 | Pollutant | Designation | Classification if nonattainment | |---|---|---| | Ozone | ☐ attainment ☐ nonattainment | [ ] — 42 U.S.C. § 7511 | | PM | [ ] | [ ] | | SO2 / NO2 / CO / Pb | [ ] | [ ] |

Emission units | Unit ID | Description | Rated capacity | Fuel / material | Control device | Stack params | Emission factor source | |---|---|---|---|---|---|---| | [ ] | [ ] | [ ] | [ ] | [ ] | [ ] | [ ] |

Applicable requirements identified ☐ SIP provisions — 42 U.S.C. § 7410 · 40 C.F.R. Part 51 · 40 C.F.R. Part 52: [ ] ☐ New source performance standards — 42 U.S.C. § 7411 · 40 C.F.R. Part 60, subparts: [ ] ☐ Hazardous air pollutants — 42 U.S.C. § 7412 · 40 C.F.R. Part 61 / 40 C.F.R. Part 63, subparts: [ ] ☐ Risk management — 40 C.F.R. Part 68 ☐ Refrigerants — 40 C.F.R. Part 82 ☐ GHG reporting — 40 C.F.R. Part 98 ☐ Product content — 40 C.F.R. Part 59 ☐ Operating permit — 40 C.F.R. Part 70 / 40 C.F.R. Part 71

Responsible official: [ ] Delegation documented: ☐ Program owner: [ ] Backup: [ ]

Tool 2 — Potential to Emit Worksheet

Potential to emit = maximum capacity to emit under physical and operational design, considering only FEDERALLY ENFORCEABLE limits. Not actual emissions.

Unit Pollutant Max capacity Hours assumed Emission factor Uncontrolled PTE Control efficiency Enforceable limit? Controlled PTE
[ ] [ ] [ ] 8,760 unless limited [ ] [ ] tpy [ ]% ☐ yes: [ ] [ ] tpy

Totals | Pollutant | Facility PTE (tpy) | Major threshold | Major source? | |---|---|---|---| | VOC | [ ] | [ ] | ☐ | | NOx | [ ] | [ ] | ☐ | | PM / PM10 / PM2.5 | [ ] | [ ] | ☐ | | SO2 / CO | [ ] | [ ] | ☐ | | Single HAP | [ ] | [ ] | ☐ | | Total HAP | [ ] | [ ] | ☐ |

⚠️ HAP thresholds under 42 U.S.C. § 7412 differ from criteria pollutant thresholds. Compute both. ⚠️ Assume 8,760 hours unless a federally enforceable limit says otherwise. "We only run one shift" is not a limit.

Tool 3 — Permit Condition Matrix

The single most useful compliance document a facility can maintain.

# Permit § Condition (summary) Unit Demonstrating record Frequency Owner Retention Last verified
1 [ ] [emission limit] [ ] [CEMS data / stack test] [continuous] [ ] [ ] [ ]
2 [ ] [operating limit] [ ] [parametric log] [daily] [ ] [ ] [ ]
3 [ ] [work practice] [ ] [inspection log] [monthly] [ ] [ ] [ ]
4 [ ] [recordkeeping] [ ] [usage records] [monthly] [ ] [ ] [ ]
5 [ ] [reporting] [ ] [report file] [semiannual] [ ] [ ] [ ]

☐ Every condition in the permit appears in this matrix — verified by reading the permit line by line, date: [ ] ☐ Every row has a named owner and a named backup ☐ Reviewed quarterly ☐ Reviewed by the responsible official before certification ☐

Tool 4 — Applicability Memorandum Template

PROJECT APPLICABILITY ANALYSIS — PREPARED BEFORE CONSTRUCTION Project: [ ] Date prepared: [ ] Construction start: [ ] Preparer: [ ] Reviewer: [ ]

1. Project description. [Physical description; drawings attached.] 2. Purpose. ☐ reliability ☐ capacity ☐ efficiency ☐ product change ☐ regulatory compliance — narrative: [ ] 3. Affected units. [Permit unit numbers.] 4. Is this routine maintenance, repair, and replacement? ☐ yes ☐ no — basis: cost relative to replacement $[ ] / $[ ]; frequency in the industry [ ]; purpose [ ]; effect on capacity or life [ ] 5. Baseline actual emissions. Lookback period: [ ] — reason: [ ]. Data: operating hours [ ], throughput [ ], fuel [ ], emission factors [ ]. Baseline: [ ] tpy per pollutant. 6. Projected actual emissions. [ ] tpy per pollutant — assumptions: [ ] 7. Excludable demand growth. ☐ none ☐ [ ] tpy — support: [ ] 8. Netting. ☐ not used ☐ used — contemporaneous period [ ]; increases [ ]; decreases [ ]; enforceability of each decrease: [ ] 9. Net increase vs. significance thresholds. | Pollutant | Baseline | Projected | Net increase | Threshold | Significant? | |---|---|---|---|---|---| | [ ] | [ ] | [ ] | [ ] | [ ] | ☐ |

10. Conclusion. ☐ No review triggered ☐ PSD triggered — 42 U.S.C. § 7475 ☐ Nonattainment NSR triggered — 42 U.S.C. § 7503 11. Post-project obligations if based on a projection. Track: [ ] · Duration: [ ] · Reports due: [ ] 12. Other programs triggered. ☐ 42 U.S.C. § 7411 ☐ 42 U.S.C. § 7412 ☐ permit modification required

⚠️ Environmental Defense v. Duke Energy Corp.: a falling hourly rate does not resolve an annual-tonnage inquiry. ⚠️ A memorandum dated after construction began is worth very little.

Tool 5 — Control Technology Analysis Template

Unit: [ ] Pollutant: [ ] Standard: ☐ BACT (42 U.S.C. § 7475) ☐ LAER (42 U.S.C. § 7503) ☐ MACT (42 U.S.C. § 7412) ☐ RACT

Step 1 — Identify all available control technologies | # | Technology | Demonstrated in this source category? | Source of information | |---|---|---|---| | 1 | [ ] | ☐ | [permit database / vendor / literature] |

Step 2 — Eliminate technically infeasible options | Technology | Eliminated? | Technical basis (specific) | |---|---|---| | [ ] | ☐ | [ ] |

⚠️ Do not eliminate an option without specific technical support. This is the most common deficiency and the most common ground of challenge.

Step 3 — Rank remaining options by control effectiveness | Rank | Technology | Control efficiency | Expected emission rate | |---|---|---|---| | 1 | [ ] | [ ]% | [ ] |

Step 4 — Evaluate impacts (top-down) | Technology | Capital cost | Annualized cost | Tons removed/yr | $/ton | Energy impact | Environmental impact | |---|---|---|---|---|---|---| | [ ] | $[ ] | $[ ] | [ ] | $[ ] | [ ] | [ ] |

Step 5 — Selection and justification. Selected: [ ]. Reason the higher-ranked option was rejected: [ ]. (For LAER, cost is not weighed the same way; state the standard applied.)

Proposed limit and averaging period: [ ] · Compliance demonstration method: [ ]

Tool 6 — Synthetic Minor Tracking Sheet

Limit: [ ] Source: permit § [ ] Federally enforceable: ☐ yes Averaging period: ☐ 12-month rolling ☐ calendar year

Month Parameter (usage / hours / throughput) Emission factor Monthly emissions 12-month rolling total Limit Margin Reviewed by
[ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ]

Alert thresholds: ☐ 80% of limit → notify management ☐ 90% → operational restriction plan ☐ 95% → stop-work review Primary records supporting each entry: ☐ purchase invoices ☐ hour meters ☐ production logs ☐ fuel receipts Annual reconciliation to primary records completed: [ ] by [ ]

⚠️ Exceeding a synthetic minor limit is a permit violation and may retroactively expose the facility to the major source requirements it avoided — 42 U.S.C. § 7661a.

Tool 7 — Deviation Log

A deviation is ANY departure from ANY permit term — including monitoring and recordkeeping terms.

# Date/time start Date/time end Permit § Description Cause Emissions consequence Corrective action Prompt report due Reported Semiannual report Certification
1 [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] ☐ ☐ ☐

Categories to capture that are frequently missed: ☐ Monitor downtime below required data availability ☐ Missed calibration or quality assurance check ☐ Late or missing record entry ☐ Missed inspection or tune-up ☐ Late report filing ☐ Operating outside a parametric range ☐ Emergency generator non-emergency hours

Quarterly reconciliation: deviation log ↔ semiannual reports ↔ draft certification — completed [ ] by [ ]

Tool 8 — Compliance Certification Package

Assemble before the responsible official signs. The signature is personal.

☐ 1. The permit, current version, with all modifications ☐ 2. The permit condition matrix (Tool 3), verified line by line against the permit ☐ 3. The deviation log (Tool 7) for the full certification period ☐ 4. Both semiannual monitoring reports as filed ☐ 5. Monitoring data availability summary by device ☐ 6. Stack test reports conducted during the period ☐ 7. Synthetic minor tracking sheets (Tool 6) with annual reconciliation ☐ 8. Records demonstrating each work practice and recordkeeping condition ☐ 9. A reconciliation memorandum explaining any discrepancy among items 3, 4, and 8 ☐ 10. For each condition: ☐ continuous compliance ☐ intermittent — periods identified: [ ] ☐ 11. Documentation of the responsible official's review, with date ☐ 12. Confirmation of delegated authority

⚠️ A knowingly false certification may be charged criminally under 42 U.S.C. § 7413. The remedy is not avoidance; it is building a record that supports the signature.

Tool 9 — Information Request Response Protocol

Request received [date] under 42 U.S.C. § 7414. Response due [date].

☐ Day 1. Issue a document hold covering everything within scope, including monitoring historians, maintenance systems, laboratory records, and email. Distribute to every custodian. ☐ Day 1. Assemble the team: environmental [ ] · operations [ ] · records/IT [ ] · counsel [ ]. ☐ Day 2–3. Map the request item by item to custodians and systems. ☐ Day 3. Write to the agency confirming scope interpretation and, if needed, proposing a schedule with a credible plan. ☐ Week 1. Begin collection. Track by item. ☐ Week 2. Run the facility's own analysis of the same facts. The request reveals the agency's theory. ☐ Before production. Privilege review — recognizing that required records and monitoring data are generally not privileged. ☐ Production. Complete, indexed, with a cover letter mapping each item to the documents produced. ☐ After. Log everything produced with dates; calendar any supplementation commitment.

⚠️ An omission later supplemented is worse than a slower complete response.

Tool 10 — Notice of Violation Response Outline

1. Alleged violations, verified. | # | Allegation | Permit § | Our records show | Agree / Dispute | Support | |---|---|---|---|---|---| | 1 | [ ] | [ ] | [ ] | ☐ / ☐ | [ ] |

2. Factual corrections. [Errors in dates, units, quantities, or the condition cited.] 3. Misapplied conditions. [Where the agency has read a condition incorrectly; quote the condition.] 4. Affirmative defenses. ☐ malfunction defense under [SIP provision] — notice given [ ], documentation [ ] ☐ none available 5. Corrective action taken. | Action | Date completed | Verification | 6. Delayed compliance actions still outstanding. ⚠️ Complete these now — 42 U.S.C. § 7420. 7. Economic benefit, computed by us. Delayed capital $[ ] · avoided operating cost $[ ] · period [ ] · estimate $[ ] 8. Gravity mitigation. ☐ self-disclosed ☐ prompt correction ☐ cooperation ☐ compliance history ☐ environmental benefit achieved 9. Proposed resolution. ☐ administrative order ☐ consent agreement — proposed injunctive terms [ ] · proposed penalty $[ ] · supplemental environmental project [ ] 10. Stipulated penalties. Review every milestone for achievability before agreeing.

📌 Negotiate the injunctive relief hardest. It typically costs far more than the penalty.

Tool 11 — Citizen Suit Notice Analysis

Notice received [date] under 42 U.S.C. § 7604. Suit may be filed after [date + 60 days].

# Alleged violation Source of allegation Our records Reported by us? Corrected? Ongoing?
1 [ ] ☐ our semiannual report ☐ our certification ☐ CEMS data ☐ inspection ☐ other [ ] ☐ ☐ ☐

☐ Most notices are built from self-reported data. Verify each against primary records. ☐ Is the agency diligently prosecuting the same conduct? ☐ yes → may bar the suit — confirm scope overlap ☐ Is each violation ongoing or wholly past? [ ] ☐ Standing analysis: alleged injury [ ], traceability [ ], redressability [ ] ☐ Attorney's fees exposure if plaintiff prevails: estimate $[ ] ☐ Use the sixty days: complete corrective action, document it, and consider approaching the agency. ☐ Decision: ☐ negotiate with noticing party ☐ seek agency action ☐ prepare to defend

Tool 12 — Authority Quick Reference

Standards and plans ☐ Purposes 42 U.S.C. § 7401 · Designations 42 U.S.C. § 7407 · NAAQS 42 U.S.C. § 7409 · 40 C.F.R. Part 50 ☐ SIPs 42 U.S.C. § 7410 · 40 C.F.R. Part 51 · 40 C.F.R. Part 52 · Definitions 42 U.S.C. § 7602 ☐ Conformity 42 U.S.C. § 7506 · Sanctions 42 U.S.C. § 7509 · Classifications 42 U.S.C. § 7511

Permits ☐ PSD 42 U.S.C. § 7470 · 42 U.S.C. § 7475 · 42 U.S.C. § 7479 ☐ Nonattainment 42 U.S.C. § 7501 · 42 U.S.C. § 7502 · 42 U.S.C. § 7503 ☐ Operating permits 42 U.S.C. § 7661 · 42 U.S.C. § 7661a · 42 U.S.C. § 7661c · 40 C.F.R. Part 70 · 40 C.F.R. Part 71

Source standards ☐ NSPS 42 U.S.C. § 7411 · 40 C.F.R. Part 60 ☐ HAP 42 U.S.C. § 7412 · 40 C.F.R. Part 61 · 40 C.F.R. Part 63 ☐ Risk management 40 C.F.R. Part 68 · Products 40 C.F.R. Part 59 ☐ Ozone layer 42 U.S.C. § 7671 · 40 C.F.R. Part 82 · GHG reporting 40 C.F.R. Part 98

Enforcement and review ☐ 42 U.S.C. § 7413 · 42 U.S.C. § 7414 · 42 U.S.C. § 7420 · 42 U.S.C. § 7604 · 42 U.S.C. § 7607

Mobile sources ☐ 42 U.S.C. § 7521 · 42 U.S.C. § 7522 · 42 U.S.C. § 7524 · 42 U.S.C. § 7543 · 42 U.S.C. § 7545

Cases ☐ Whitman v. American Trucking Ass'ns · Massachusetts v. EPA · Environmental Defense v. Duke Energy · Alaska Dep't of Envtl. Conservation v. EPA · EPA v. EME Homer City Generation · West Virginia v. EPA · Engine Manufacturers Ass'n v. South Coast AQMD

📌 The three rules again: designation decides the requirements; the analysis must be written before the project; and the violation is frequently the missing record.

Using these tools together

The instruments in this toolkit are designed to feed one another, and using them in isolation loses most of their value.

Tool 1 and Tool 2 build the baseline, and everything else depends on them being current. An emissions inventory that has not been updated since the last equipment change makes every subsequent analysis unreliable. Refresh both whenever equipment changes and at least annually.

Tool 3 converts the permit into an operating document. Most facilities have a permit in a binder and a set of habits that grew up around it, and the two have drifted apart. Building the matrix by reading the permit line by line is a one-time exercise of a few hours that reliably surfaces two or three conditions nobody was tracking.

Tool 4 is the one that prevents the largest exposures. New source review liability accrues silently for years and surfaces during an acquisition or an information request. A file of dated applicability memoranda is the difference between a manageable diligence conversation and a repriced transaction.

Tools 6, 7, and 8 are a single system. The tracking sheet feeds the deviation log; the deviation log feeds the semiannual reports; the reports feed the certification. Reconciling them quarterly rather than annually is the single highest-value process change available in this area.

Tools 9, 10, and 11 are used under time pressure, which is why they should be read once when nothing is happening. The decisions that matter most — issuing the hold, confirming scope, completing delayed compliance actions — all happen in the first week.

📌 If a facility adopts only two things from this toolkit, adopt Tool 3 and Tool 4. The condition matrix prevents ordinary violations, and the applicability memorandum prevents extraordinary ones.

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