Environmental Compliance Calendar: Every Deadline You Cannot Miss

Most environmental penalties come from missed deadlines, not from active misconduct. A facility that passes every EPA inspection can still rack up six-figure fines by blowing past a Tier II deadline, a biennial report, or a stormwater visual monitoring requirement. The rules are scattered across RCRA, EPCRA, CWA, CAA, SPCC, and state-specific statutes. Keeping them straight takes a calendar.

This guide lays out every major federal environmental compliance deadline by month, plus the state-level triggers that most facilities ignore until an inspector asks for the record. Use it as a starting point and customize to your specific permits.

January

Annual SPCC Plan Review: If you have a Spill Prevention Control and Countermeasure plan under 40 CFR 112, your facility manager and PE (if applicable) must review and certify the plan annually. The review must be documented even if no changes are made.

Lead and Copper Rule Sampling: Community water systems begin first-half sampling if applicable.

CERCLA/EPCRA Continuous Release Reports: Follow-up reports due for any continuous releases reported the prior year.

February

Begin Tier II Preparation: EPCRA Section 312 reports are due by March 1. February is when facility EHS teams need to start compiling chemical inventories, SDS, and facility data. Many facilities file late because they start compiling in February when they should have started in January.

Annual TSCA CDR Prep (every 4 years): If your facility manufactures or imports chemicals above thresholds, the TSCA Chemical Data Reporting cycle begins in major years. The 2024 cycle data is due in 2024; the next major cycle is 2028.

March

Tier II Due March 1: EPCRA Section 312 reports must be submitted to the State Emergency Response Commission, Local Emergency Planning Committee, and local fire department. Many states use Tier II Submit or similar online systems. Missing this deadline is common and penalties run $10,000 to $57,000 per violation.

Annual Title V Compliance Certifications often due for Clean Air Act permitted facilities.

Annual Stormwater Report due in many states for industrial permitted facilities covered by the Multi-Sector General Permit.

April

First Quarter Stormwater Visual Monitoring should be completed for facilities with quarterly visual monitoring requirements under the MSGP.

Q1 Air Emission Inventory data collection for facilities with quarterly reporting.

May

Any changes to Tier II (significant inventory increases, new chemicals reaching thresholds) must be reported within 30 days of the change. May is a good checkpoint to verify your Tier II reflects what you actually have.

June

Annual RCRA Subtitle C Inspection Readiness: Many state programs conduct inspections in summer. Use June to verify labels, aisle space, emergency equipment, training records, and contingency plans.

Air Permit Semi-Annual Deviation Reports often due for Title V facilities.

July

TRI Form R Due July 1: Toxic Release Inventory reports under EPCRA Section 313 are due. Applies to facilities with 10 or more full-time employees that manufacture, process, or use listed toxic chemicals above thresholds. Missing this is expensive: $57,000+ per violation.

Second Quarter Stormwater Visual Monitoring completion.

Mid-Year Financial Assurance Update for facilities required to maintain financial responsibility for closure and post-closure.

August

Air Permit Semi-Annual Reports for facilities on January-July reporting cycles.

Biennial RCRA Hazardous Waste Report preparation begins. The report is due March 1 of even-numbered years (2026, 2028, etc.) and compiling two years of manifest data, waste codes, and generator quantities takes serious time.

September

Q3 Stormwater Visual Monitoring complete.

Hurricane season peak (Aug-Oct): Verify emergency response plans, confirm SPCC emergency contact lists, test alarms and spill equipment. Plan preparation matters more than plan documentation during an actual event.

October

RCRA Corrective Action progress reports often due for facilities in active cleanup.

Begin NPDES Annual Report prep for facilities on calendar-year reporting.

November

Winterization checks: Drain outdoor piping, inspect secondary containment for leaks or damage, verify snow melt will not contaminate product storage areas.

Q4 Stormwater Visual Monitoring planning.

December

Year-end waste reconciliation: Verify manifest data matches internal waste tracking. Gaps found in December are harder to explain than gaps found in January.

Annual fire extinguisher, eye wash, and safety shower certifications often due.

Begin next year Tier II data compilation so you are not scrambling in February.

Ongoing Requirements

Not all compliance is date-driven. These require continuous attention:

Weekly RCRA inspections: LQGs must inspect accumulation areas weekly and document every inspection. Missing a week is a finding. Small facilities skip this because it feels excessive. Inspectors do not agree.

Monthly SPCC inspections: Tank integrity, secondary containment, valves and piping. Document every inspection.

30-day drum labeling requirement: Hazardous waste containers must be labeled with start of accumulation date, hazard warnings, and "Hazardous Waste" text within specific timeframes.

Spill reporting (CERCLA RQ): Any release above the reportable quantity triggers NRC notification within 24 hours. Use our RQ Calculator to check thresholds. State notifications often have shorter deadlines.

Building a Compliance Calendar System

A decent compliance calendar has three elements: a master list of every applicable deadline based on your permits and waste generation, owner assignments with backup personnel, and reminders set 30 days before each deadline. The reminders matter more than the deadlines. A 30-day reminder gives you time to gather data, a 7-day reminder means you are submitting something rushed.

Software solutions range from free (Google Calendar) to enterprise (Intelex, Cority, Enablon). The tool matters less than the discipline of keeping it current. A beautiful calendar that hasn't been updated in 18 months is worthless.

Need help with specific compliance programs? Read our guides on SPCC plans, stormwater sampling, and RCRA storage requirements. For penalty ranges by state, use the penalties lookup.