Land Use & Zoning

Montana's 'certificate of survey' (COS) process is required when:

AAny property is sold in Montana
BA parcel is divided into fewer lots than required for a full subdivision review✓ Correct
CBuilding permits are issued for new construction
DProperties are transferred between family members

Explanation

In Montana, a Certificate of Survey (COS) is required when a parcel is divided into 5 or fewer tracts (below the threshold for full subdivision review). The COS must be surveyed, approved by the county, and recorded. It documents the division without the full subdivision platting process.

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