This Standard covers metallic, plastic, and combination utility boxes intended for plumbing applications such as washing machines, ice makers, tubs, gas supply, and air admittance valves. This Standard specifies requirements for physical characteristics, performance tests and markings and identification for metallic or plastic utility boxes.

The purpose of this Standard is to enhance health and safety by:

(a) specifying acceptable criteria for metallic, plastic, and combination utility boxes;

(b) serving as a guide for producers, distributors, architects, engineers, contractors, installers, inspectors, and users; and

(c) promoting understanding regarding materials, manufacturing, and installation of metallic and plastic utility boxes.