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MT HB664
Bill
Status
Passed
5/1/2025
Primary Sponsor
Bill Mercer
Click for details
AI Summary
- Repeals Montana's base numeric nutrient standards (DEQ-12A) adopted in 2014, replacing them with narrative nutrient standards for water quality regulation
- Directs the Department of Environmental Quality to amend 14 administrative rules (ARM 17.30.507 through 17.30.715) to remove all references to numeric nutrient standards and variances
- Eliminates the Nutrient Work Group, an advisory body that included public and private pollution sources and advised DEQ on nutrient standards implementation
- Repeals Section 75-5-321, MCA (transition for nutrient standards) and administrative rules ARM 17.30.660 and 17.30.1388
- Effective immediately upon passage and approval, citing that numeric standards proved "unachievable and burdensome" especially for municipal wastewater treatment systems
Legislative Description
Repeal numeric nutrient standards
Rule Making
Last Action
Chapter Number Assigned
5/5/2025
Committee Referrals
Natural Resources3/17/2025
Natural Resources2/22/2025
Full Bill Text
No bill text available