HF1592

The bill proposes modifications to Minnesota's laws regarding calcareous fens, which are rare and sensitive wetland ecosystems.

Key Provisions:

1. Calcareous Fen Protection:

   • The Minnesota Department of Natural Resources (DNR) commissioner may not fill, drain, or degrade a calcareous fen unless an approved management plan determines that some alteration is necessary or if temporary water reductions are allowed on a seasonal basis.

2. Permit Process Changes:

   • The commissioner cannot deny a permit or prohibit an action based on potential effects on a calcareous fen without first providing a detailed report.
     
   • The report must include:
     • A description of the specific calcareous fen in question.
     • An explanation of its ecological benefits.
     • A description of the potential negative effects of the proposed action.

3. Rulemaking Requirement:

   • The commissioner must adopt rules to define a calcareous fen.

4. Legislative Report:

   • By December 1, 2025, the commissioner must submit a report to the legislature that includes:
     • A proposed definition of "calcareous fen" with scientific justification.
     • A scientific explanation of ecological benefits compared to other wetlands.
     • A summary of permit denials related to calcareous fens over the past 10 years.

This bill strengthens transparency and scientific justification in calcareous fen management while requiring a clear legal definition for these wetland types.