A bill to amend the Internal Revenue Code of 1986 to extend the credit period for the production of refined coal, and for other purposes.

This bill, designated as S. 4112 in the 119th Congress, aims to amend the Internal Revenue Code of 1986 specifically to extend the credit period for the production of refined coal. The bill was introduced on March 17, 2026, and addresses other purposes in addition to the extension of the credit period.