# Plain-English Summary: Plumbing Code Update South Dakota's plumbing rules are being updated to adopt the 2024 Uniform Plumbing Code, replacing the 2015 version that was previously in effect. The changes affect plumbers, contractors, and anyone installing or maintaining plumbing systems by updating technical standards for water lines, drainage systems, venting, backflow prevention, water heaters, fixtures, and testing methods—such as allowing plastic pipe underground in some cases, changing water heater drip pan requirements, modifying vent terminal sizes for roofs, and simplifying dishwasher drainage options. Additionally, the state is streamlining its water conditioning definitions by removing outdated technical terminology while keeping essential definitions for water softeners and treatment systems.
AI-generated from the adopted rule text — verify against the official documents.
Rule changes to conform with Senate Bill 25 (2025) adopting the 2024 Uniform Plumbing Code and amendments from the Plumbing Commission.
No specific cites listed — see the package documents.
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