Bill > HF437

This bill repeals a previous prohibition on air admittance valves (AAVs) in Minnesota's plumbing codes. Specifically, the bill removes a provision from Minnesota Statutes that previously banned mechanical devices with internal moving parts from being installed in plumbing venting systems. Air admittance valves are plumbing devices that allow air to enter the plumbing system to help equalize pressure and prevent sewer gases from backing up into buildings. By repealing this prohibition, the bill will now allow contractors and homeowners to install these devices in plumbing systems, potentially providing more flexibility in plumbing design and potentially reducing installation costs. The change suggests a recognition that modern AAV technology may have improved to the point where these devices are now considered safe and effective for use in plumbing systems.

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https://www.revisor.mn.gov/bills/bill.php?b=House&f=HF0437&ssn=0&y=2025