25 May 2005
Change 1, 22 February 2006
Change 2, 4 December 2006
CHAPTER 2 POLICY
Design Naval shore facilities in accordance with all Navy and Department of Defense
(DoD) Criteria. DoD Design Criteria are available from the Whole Building Design
Guide web site (http://www.wbdg.org/references/pa_dod_go.php) and from the
Construction Criteria Base (CCB) web site (http://www.wbdg.org/ccb.) Design criteria
include general criteria, as well as specific criteria on particular elements of the work
(e.g., Geotechnical and Engineering Procedures for Foundation Design of Buildings and
Structures) and facility types (e.g., Bachelor Quarters). Design guidance is typically in
the form of Unified Facilities Criteria (UFC). The contract will reference the specific
guidance applicable to a particular project. Deviations from criteria must be approved
by the NAVFAC Chief Engineer.
INTERNATIONAL SYSTEM OF UNITS.
NAVFAC policy is to use the metric system of measurement (International System of
Units, SI) in planning and design criteria, Unified Facilities Guide Specifications (UFGS),
and construction contract documents for all MCON/MILCON, BRACON, and family
housing regardless of acquisition method.
For further information about the use of SI in projects and criteria documents, see MIL-
A Hard Metric measurement indicates a non-interchangeable SI value and
is based on SI values that change in size and properties from Inch-Pound
A Soft Metric measurement is a mathematical approximation or equal unit
conversion of an IP product.
Design host country projects using hard metric units except in cases where items that
are unavailable in hard metric manufactured equivalents are procured from U.S.-based
manufacturers and only obtainable in IP units or their soft metric equivalents. Plan and
design CONUS and OCONUS projects in U.S. states and territories in a combination of
soft metric and hard metric units.
Strive to use as many hard metric products as possible. Only where hard metric
products are determined to be unavailable or uneconomical should soft metric products