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EPA EPCRA Hazard Category Update — Effective January 16, 2026
EPA's final rule (90 FR 51187) aligns EPCRA hazard categories with the 2024 OSHA HCS. Compliance required for 2026 reporting year. New Tier II forms reflect expanded hazard classes.
Featured Guide
The Complete Guide to EPCRA Tier II Compliance for 2026
Everything you need to know about Section 312 reporting — threshold calculations, state-specific requirements, mixture decomposition, commonly missed chemicals, and preparation strategies for the March 1 deadline.
Contents
01 — EPCRA Overview & History
02 — Who Must File: Threshold Analysis
03 — EHS vs. Hazardous Chemical Thresholds
04 — Mixture & Ingredient Calculations,
05 — State-by-State Requirements Map
06 — Commonly Missed Chemicals
07 — The March 1 Filing Process
08 — Audit Preparation & Documentation
09 — Automation & Graph-Based Approaches
02 — Who Must File: Threshold Analysis
03 — EHS vs. Hazardous Chemical Thresholds
04 — Mixture & Ingredient Calculations,
05 — State-by-State Requirements Map
06 — Commonly Missed Chemicals
07 — The March 1 Filing Process
08 — Audit Preparation & Documentation
09 — Automation & Graph-Based Approaches
Ingredient-Level Threshold Calculations: A Practical Guide
How to decompose chemical mixtures using SDS Section 3 data, aggregate ingredient quantities across products, and determine which chemicals exceed EPCRA reporting thresholds at your facility.
Jan 2026
Multi-Site Manufacturer: From 6 Weeks to 3 Days for Tier II Season
How a 14-facility chemical manufacturer automated Tier II reporting across 8 states, eliminating spreadsheet-based inventory aggregation and reducing consultant dependency by 70%.
Dec 2025
Why Spreadsheets Fail at Chemical Compliance
The fundamental architectural mismatch between tabular data and compliance obligations — and why graph databases are the natural fit for regulatory intelligence.
Feb 2026
EPA Aligns EPCRA Hazard Categories with 2024 OSHA HCS
Analysis of the November 2025 final rule (90 FR 51187) that replaces the five legacy EPCRA hazard categories with expanded GHS-aligned hazard classes. Compliance required for 2026 Tier II reports.
Nov 2025
Preparing for March 1: Tier II Reporting Strategies for 2026
Live walkthrough of the 2026 Tier II filing process, including new hazard category requirements, state portal changes, and how to use SafeGenics to automate threshold calculations and submissions.
Dec 2025
The Future of Compliance Intelligence: Graph vs. Relational Architectures
Technical analysis of why knowledge graphs outperform relational databases for multi-hop compliance reasoning, with benchmarks on threshold detection speed, citation granularity, and regulatory change simulation.
Oct 2025
RCRA Pharmaceutical Waste: A Hospital Compliance Guide
Navigate the intersection of RCRA hazardous waste, EPCRA chemical reporting, and OSHA HazCom for healthcare facilities. Covers P-listed drugs, generator status, and the 2019 Subpart P rule.
Nov 2025
Research University: Unifying 200+ Lab Inventories for Campus Compliance
How a major research university replaced manual chemical surveys with PI self-service reporting through SafeGenics, achieving 95% lab participation and accurate campus-wide EPCRA and CFATS threshold monitoring.
Sep 2025
The 5 Chemicals Most Commonly Missed on Tier II Reports
Sulfuric acid in forklift batteries, diesel in backup generators, wood dust from machining, liquid nitrogen in research facilities, and refrigerants in HVAC systems — and how to catch them.
Jan 2026
EPCRA Compliance for Retail: What Store Managers Don't Know
Why home improvement stores, auto parts retailers, and garden centers are subject to EPCRA reporting — and how to manage compliance across hundreds of locations with no on-site EHS staff.
Dec 2025
Multi-Site Chemical Inventory Best Practices
Expert strategies for managing chemical inventories across distributed facilities — centralized vs. distributed models, CAS-centric identity resolution, and real-time threshold monitoring.
Oct 2025
OSHA HazCom 2024: Updated Compliance Timeline
Breakdown of OSHA’s phased HCS transition to GHS Revision 7 — what changes for SDS authoring (December 2026), label updates (July 2027), and full workplace compliance (January 2028).
Aug 2025
Ingredient-Level Threshold Calculations: A Practical Guide
How to decompose chemical mixtures using SDS Section 3 data, aggregate ingredient quantities across products, and determine which chemicals exceed EPCRA reporting thresholds at your facility.
Jan 2026
RCRA Pharmaceutical Waste: A Hospital Compliance Guide
Navigate the intersection of RCRA hazardous waste, EPCRA chemical reporting, and OSHA HazCom for healthcare facilities. Covers P-listed drugs, generator status, and the 2019 Subpart P rule.
Nov 2025
EPCRA Compliance for Retail: What Store Managers Don't Know
Why home improvement stores, auto parts retailers, and garden centers are subject to EPCRA reporting — and how to manage compliance across hundreds of locations with no on-site EHS staff.
Dec 2025
Multi-Site Manufacturer: From 6 Weeks to 3 Days for Tier II Season
How a 14-facility chemical manufacturer automated Tier II reporting across 8 states, eliminating spreadsheet-based inventory aggregation and reducing consultant dependency by 70%.
Dec 2025
Research University: Unifying 200+ Lab Inventories for Campus Compliance
How a major research university replaced manual chemical surveys with PI self-service reporting through SafeGenics, achieving 95% lab participation and accurate campus-wide EPCRA and CFATS threshold monitoring.
Sep 2025
Why Spreadsheets Fail at Chemical Compliance
The fundamental architectural mismatch between tabular data and compliance obligations — and why graph databases are the natural fit for regulatory intelligence.
Feb 2026
The 5 Chemicals Most Commonly Missed on Tier II Reports
Sulfuric acid in forklift batteries, diesel in backup generators, wood dust from machining, liquid nitrogen in research facilities, and refrigerants in HVAC systems — and how to catch them.
Jan 2026
Preparing for March 1: Tier II Reporting Strategies for 2026
Live walkthrough of the 2026 Tier II filing process, including new hazard category requirements, state portal changes, and how to use SafeGenics to automate threshold calculations and submissions.
Dec 2025
Multi-Site Chemical Inventory Best Practices
Expert strategies for managing chemical inventories across distributed facilities — centralized vs. distributed models, CAS-centric identity resolution, and real-time threshold monitoring.
Oct 2025
The Future of Compliance Intelligence: Graph vs. Relational Architectures
Technical analysis of why knowledge graphs outperform relational databases for multi-hop compliance reasoning, with benchmarks on threshold detection speed, citation granularity, and regulatory change simulation.
Oct 2025
EPA Aligns EPCRA Hazard Categories with 2024 OSHA HCS
Analysis of the November 2025 final rule (90 FR 51187) that replaces the five legacy EPCRA hazard categories with expanded GHS-aligned hazard classes. Compliance required for 2026 Tier II reports.
Nov 2025
OSHA HazCom 2024: Updated Compliance Timeline
Breakdown of OSHA’s phased HCS transition to GHS Revision 7 — what changes for SDS authoring (December 2026), label updates (July 2027), and full workplace compliance (January 2028).
Aug 2025
Stay ahead of regulatory changes
Monthly digest of EPA, OSHA, and state regulatory updates — with facility-specific impact analysis, not just headline summaries. Written by our compliance team.
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