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 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 This website is no longer updated and links to external websites and some internal pages may not work.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 »

Confidential Business Information under TSCA

TSCA CBI Training - Access

Access for Contractors

Sometimes, EPA allows contractors access to TSCA CBI. The EPA Project Officer (PO) determines if a contractor company requires access to TSCA CBI.

Generally speaking, contractors who receive or use CBI must comply with the same rules that federal employees do, regardless of whether the contractors work on-site or off-site. In fact, there are even more rules for contractors who handle CBI off-site from EPA.

Each contractor with TSCA CBI access, at either the contractor's facility or an EPA facility, must have a contractor DCO, who must be designated before the contractor is allowed access to TSCA CBI.

Remember: A contractor to EPA handling CBI has the same responsibilities as a federal employee. If you see CBI being handled inappropriately, let your supervisor or DCO know immediately.