Preparing for 2026: A Guide to Annual Environmental Reporting for 2025 Activities
As the calendar turns, many organizations are shifting focus from day-to-day operations to a critical part of environmental compliance: annual and recurring regulatory reporting. Several key federal and state environmental reports tied to calendar year 2025 activities are due in 2026, and early preparation can help avoid last-minute stress, reporting errors, and potential enforcement issues.
Below is a summary of some of the key requirements and what companies need to know:
EPCRA Tier II Reporting – Due March 1, 2026 – Under Section 312 of the Emergency Planning and Community Right-to-Know Act (EPCRA), facilities may be required to submit Tier II chemical inventory reports if they stored hazardous chemicals on-site during 2025. In general, Tier II reporting applies to facilities that stored 10,000 pounds or more of a hazardous chemical at any one time during the year, or Extremely Hazardous Substances (EHSs) at or above their lower regulatory thresholds.
RCRA Biennial Hazardous Waste Reporting – Due March 1, 2026 – Facilities classified as Large Quantity Generators (LQGs) must submit a biennial hazardous waste report covering calendar year 2025. This report summarizes hazardous waste generation, management, and disposal activities.
Annual Air Updates and Emissions Statements – Due March 1, April 15, or June 30, 2026 – Air compliance reporting timelines vary depending on permit type and jurisdiction. Many facilities are required to submit annual updates, emissions statements, or operational summaries. Permit conditions should be reviewed carefully to confirm applicable deadlines.
Title V Semi-Annual Reports – Typically Due End of January and End of July – Facilities operating under Title V air permits are generally required to submit semi-annual monitoring or deviation reports summarizing compliance status.
Title V Annual Compliance Certification – Due March 1, 2026 – Title V sources must also submit an annual compliance certification certifying compliance with all applicable permit conditions for calendar year 2025.
Toxics Release Inventory (TRI) Reporting – Due July 1, 2026 – TRI reporting under Section 313 of EPCRA applies to facilities in covered industry sectors that exceed employee thresholds and manufacture, process, or otherwise use listed TRI chemicals above regulatory thresholds during 2025.
Plan Ahead to Stay Compliant
Environmental reporting requirements continue to grow more complex. Reviewing inventories, waste records, air emissions data, and permit conditions early can help ensure accurate and timely submittals.
ONE Environmental Group is here to help, with regional teams of experienced consultants who can:
- Assess your reporting requirements to ensure accuracy.
- Help you gather and organize the necessary data.
- Complete and submit reports on your behalf to meet deadlines.
Contact us today for assistance!

