TL;DR
The International Plumbing Code is the ICC model code for water supply, sanitary drainage, venting, fixtures, and storm drainage in buildings, used by roughly two-thirds of US states while most western states follow the rival Uniform Plumbing Code. It sets fixture-unit sizing for pipes, trap and vent rules, backflow protection, and water heater safety requirements, with septic and private systems referenced out to other standards.
What it means
The International Plumbing Code is the ICC model code for water supply, sanitary drainage, venting, fixtures, and storm drainage in buildings, used by roughly two-thirds of US states while most western states follow the rival Uniform Plumbing Code. It sets fixture-unit sizing for pipes, trap and vent rules, backflow protection, and water heater safety requirements, with septic and private systems referenced out to other standards. Which code a jurisdiction adopts changes real design details, wet venting allowances and pipe sizing among them, so plumbers verify before bidding across state lines.
Where it sits in the glossary
International Plumbing Code is part of the Permits group inside the ProFix Directory glossary. Browse every term in this category from the glossary index.
Why Ohio homeowners should know it
This is a term Ohio homeowners encounter when reading contractor quotes, hiring paperwork, or inspection reports. Understanding it well enough to ask one good follow-up question is usually all the protection a homeowner needs.
ProFix Directory keeps definitions short on the index page and saves the longer context — Ohio-specific rules, where the term comes from, and which ProFix tools touch it — for these per-term pages so the term is easy to cite and easy to share.
ProFix tools that touch this term
See also
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