PVC Pressure Pipe is permitted to be used in any sanitary drainage, waste, and vent system and storm drainage system without limitation, in the following model plumbing codes: BOCA National Plumbing Code, NAPHCC National Standard Plumbing Code and SBCCI Standard Plumbing Code. PVC plastic pipe is limited to being installed in buildings three stories above grade or less in height by the IAPMO Uniform Plumbing Code.