House Bill No. [insert bill number] aims to revise the categorical exclusions from nondegradation authorizations by directing the amendment of ARM 17.30.716. The bill mandates the Department of Environmental Quality to amend the rule to include a new subsection that allows for the review of wastewater discharges for nonsignificance without requiring a background nitrogen sample in situations where groundwater cannot be sampled due to its absence or great depth. Additionally, the bill includes an appropriation of $500 from the general fund to support the department in amending its rules.

The bill also establishes effective dates for its provisions, with the main act becoming effective upon passage and approval, while the appropriation section will take effect on July 1, 2025. Furthermore, the act will apply to applications for nondegradation authorizations received on or after May 1, 2025. This legislative change aims to streamline the process for certain wastewater discharges while ensuring environmental protections are maintained.