Contractors & Plumbers

Contractors & Plumbers

Standards and Materials

Pipeline Installation Standards Guide

The Plumbers' Guide is intended as a guide for installation of customer-owned service lines and meter settings. This is only a guide and may not include all applicable codes, regulations, policies and procedures or revisions.

Approved Materials Manual

The Approved Materials Manual is the listing of approved materials for customer service lines and supplement The Plumbers' Guide for all Columbia Gas distribution companies.

Operator Qualifications

HDPE installation
2008 revisions to Plumbers Guide