The bill proposes to extend the sunset date of the coal severance tax coal washing credit by amending existing laws rather than repealing them. Specifically, it amends Section 7 of Chapter 433 from 2009 and Section 1 of Chapter 352 from 2015 to state that the definitions related to "coal washing" and "contract sales price" will now terminate on July 1, 2027, instead of being repealed. This extension aims to provide continued support for the coal industry in Montana.

Additionally, the bill mandates that the Secretary of State notify each federally recognized tribal government in Montana about the changes made by this act. The bill is set to take effect immediately upon passage and approval, ensuring that the extended provisions are implemented without delay.