The MPCA has prepared a draft 401 certification to the United States Army Corps of Engineers 2026 Nationwide Permits. This certification will apply to projects eligible for Nationwide Permit coverage from 2026-2031.
A 401 Water Quality Certification is required when an individual, business, or property owner proposes construction-related activities near a navigable lake, river, stream, or adjacent wetland. The MPCA reviews projects to ensure they will not violate Minnesota's more protective water quality standards. The 401 certification becomes an enforceable component of the associated federal license or permits issued under the Clean Water Act.
Comments on the draft certification will be accepted through January 19.