An official website of the United States government.

This is not the current EPA website. To navigate to the current EPA website, please go to www.epa.gov. This website is historical material reflecting the EPA website as it existed on January 19, 2021. This website is no longer updated and links to external websites and some internal pages may not work. More information »

When must an incident investigation be initiated for Program 2 and 3 processes?

When must a stationary source owner or operator begin conducting incident investigations as required under 40 CFR §68.60 (for Program 2 processes) or 40 CFR §68.81 (for Program 3 processes)?

For both Program 2 and Program 3 processes, the incident investigation must be initiated as soon as possible, but not later than 48 hours following the incident.