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 This website is no longer updated and links to external websites and some internal pages may not work.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

American Iron and Steel Requirement - Approved National Waivers

The final extension for the U.S. Environmental Protection Agency (EPA) Short-Term National Product Waiver for Stainless Steel Nuts and Bolts Used in Pipe Couplings, Restraints, Joints, Flanges, and Saddles short-term American Iron and Steel (AIS) waiver for stainless steel nuts and bolts expired on February 24, 2020. It will not be renewed.

The initial Short-Term National Waiver for Stainless Steel Nuts and Bolts was granted on February 18, 2015 as part of the "Consolidated and Further Continuing Appropriations Act, 2015." This national waiver was extended each year for five years but has now expired.

All coupling type products specifically mentioned in the waiver (couplings flanges restraints, etc.) that contain non-domestic stainless steel nuts and bolts should have been purchased by the project/SRF recipient before the expiration date. If purchased after the expiration date, the stainless steel nuts and bolts in those specific products are no longer covered by a waiver.