MS-2 2000 - Model Specification for Polyethylene Plastic Pipe, Tubing and Fittings for Fuel Gas Distribution Systems - Document under review and unavailable; contact PPI staff with questions
MAB-3 - Model Specification for PE 4710 Burried Potable Water Service, Distribution and Transmission Pipes and Fittings
Note: This replaces MS-3
MS-4 2017 - Model Specification For Polyamide 11 (PA-11) Plastic Pipe, Tubing and Fittings for Fuel Gas Distribution Systems
MS-5 2008 - Model MS 5 HDPE Solid Wall Conduit Model Specification Power and Communications Conduit and Casing. Document under review; contact PPI staff with questions.
MS-6 Model Specification and Checklist for Polyethylene (PE) Pipe for the Sliplining of Sewers Document under review and unavailable. Contact PPI staff with questions.