EPCRA and Community Right-to-Know: The Law Behind the Data

The Emergency Planning and Community Right-to-Know Act (EPCRA), enacted in 1986 as a response to the 1984 Bhopal chemical disaster, fundamentally changed the relationship between industry and local communities by requiring facilities to disclose information about hazardous chemicals they handle. EPCRA is the legal foundation for the Toxic Release Inventory, emergency planning requirements, and chemical inventory reporting that feed into databases like EmissionsLookup.

The Four Pillars of EPCRA

EPCRA has four main components: (1) Emergency Planning (Sections 301–303) — requires states and localities to establish Local Emergency Planning Committees (LEPCs) and develop emergency response plans for facilities with extremely hazardous substances; (2) Emergency Release Notification (Section 304) — requires facilities to immediately notify state and local authorities of accidental releases above certain quantities; (3) Hazardous Chemical Inventory Reporting (Sections 311–312) — requires facilities to submit Material Safety Data Sheets and inventory reports (Tier I/II) to state and local authorities; and (4) Toxic Chemical Release Reporting (Section 313) — this is the TRI, requiring annual release reports.

Who Enforces EPCRA

EPCRA enforcement is shared between EPA and state environmental agencies. Citizens also have the right to sue facilities that fail to comply with reporting requirements — the citizen suit provision was included specifically to create a community enforcement mechanism. This has been used successfully in cases where facilities failed to submit TRI reports or submit them accurately.

Extremely Hazardous Substances (EHS)

EPCRA Section 302 covers a specific list of "extremely hazardous substances" (EHS) — chemicals that pose acute toxic risk in an emergency release scenario. Facilities storing EHS above threshold planning quantities must notify their LEPC and participate in local emergency planning. Common EHS include chlorine, ammonia, hydrogen fluoride, and methyl isocyanate (the Bhopal accident chemical). Emergency planning under EPCRA is how communities prepare for worst-case accidents, not just routine releases.

Using EPCRA Data

EmissionsLookup draws primarily on TRI data (EPCRA Section 313) and ECHO facility data. You can browse TRI-reporting facilities at the top emitters list, explore releases by chemical at the chemical index, or find facilities in your area at the state browser. For community demographic context, CensusDepth provides census tract data on who lives near EPCRA-regulated facilities.