... INFORMATION 1-1. PURPOSE AND SCOPE. This document provides criteria and guidance for the design and construction of heating and cooling distribution systems and supplements information in ... July 2003 UNIFIED FACILITIES CRITERIA (UFC) HEATING AND COOLING DISTRIBUTION SYSTEMS APPROVED FOR PUBLIC RELEASE; DISTRIBUTION UNLIMITED ... \1\ The Unified Facilities Criteria (UFC) system is prescribed by MIL-STD 3007 and provides planning, design, construction, sustainment, restoration, and modernization criteria, and applies...