Uniform Plumbing Code - Chapter 3, 6, 7 & 11 Chapter 3: Location of Main Water Supply Shut-off Valve and Protection of Water Supply Piping in Unconditioned Space -- UPC/3/#1 - 3/1/99 (PDF Document, 11kb) Chapter 6: Use of Plastic Pipe in Buildings -- UPC/6/#1 (Rescinded Nov. 1, 2005) (PDF Document, 62kb) Chapter 6: Rainwater Harvesting Systems for Interior Use or Combined Interior and Exterior Use -- UPC/6/#2 - 3/13/01 (PDF Document, 344kb) Chapter 7: Procedure for Inspecting Sewer Bores -- UPC/7/#1 - 7/1/96 (PDF Document, 10kb) Chapter 7: Minimum Width Allowances for Private Plumbing and Sewer Easements -- UPC/7/#2 - 8/1/06 (PDF Document, 48kb) Chapter 11: Alternative Methods for Stormwater Drainage -- UPC/11/#1 - 7/1/96 (PDF Document, 9kb) PDF Information Some of the links on this page are to PDF documents. To open PDF files you will need Adobe Acrobat Reader installed on your computer, it is available for free from Adobe.com.