Tier I Forms and Instructions

Submission of Tier I form is required under Section 312 of the Emergency Planning and Community Right-to-Know Act of 1986 (EPCRA). The purpose of this form is to provide State and local officials and the public with information on the general hazard types and locations of hazardous chemicals present at your facility during the previous calendar year.

On July 13, 2012, EPA published a final rule to revise Tier I and Tier II reporting forms. The revisions add some new data elements and revise some existing data elements. The rule becomes effective on January 1, 2014. Facilities must comply with the new requirements on the Tier II inventory form starting reporting year 2013, which is due by March 1, 2014.