[Code of Federal Regulations]
[Title 10, Volume 3]
[Revised as of January 1, 2001]
From the U.S. Government Printing Office via GPO Access
[CITE: 10CFR435.302]

[Page 617-618]
 
                            TITLE 10--ENERGY
 
                    CHAPTER II--DEPARTMENT OF ENERGY
 
PART 435--ENERGY CONSERVATION VOLUNTARY PERFORMANCE STANDARDS FOR NEW BUILDINGS; MANDATORY FOR FEDERAL BUILDINGS--Table of Contents
 
 Subpart C--Mandatory Performance Standards for New Federal Residential 
                                Buildings
 
Sec. 435.302  Definitions.

    (a) ANSI means American National Standards Institute.
    (b) ASHRAE Handbook means American Society of Heating, Refrigerating 
and Air-Conditioning Engineeers, Inc., ASHRAE Handbook, 1985 
Fundamentals. Volume, 1-P Edition.
    (c) ASTM means American Society of Testing and Measurement.
    (d) British thermal unit (Btu) means approximately the amount of 
heat required to raise the temperature of one pound of water from 59 
deg.F to 60  deg.F.
    (e) Building means any new residential structure:
    (1) That includes or will include a heating or cooling system, or 
both, or a domestic hot water system, and
    (2) For which a building design is created after the effective date 
of this rule.
    (f) Building design means the development of plans and 
specifications for human living space.
    (g) Conservation Optimization Standard for Savings in Federal 
Residences means the computerized calculation procedure that is used to 
establish an energy consumption goal for the design of Federal 
residential buildings.
    (h) COSTSAFR means the Conservation Optimization Standard for 
Savings in Federal Residences.
    (i) DOE means U.S. Department of Energy.
    (j) Domestic hot water (DHW) means the supply of hot water for 
purposes other than space conditioning.
    (k) Energy conservation measure (ECM) means a building material or 
component whose use will affect the energy consumed for space heating, 
space cooling, domestic hot water or refrigeration.
    (l) Energy performance standard means an energy consumption goal or 
goals to be met without specification of the method, materials, and 
processes to be employed in achieving that goal or goals, but including 
statements of the requirements, criteria evaluation methods to be used, 
and any necessary commentary.
    (m) Federal agency means any department, agency, corporation, or 
other entity or instrumentality of the executive branch of the Federal 
Government, including the United States Postal Service, the Federal 
National Mortgage Association, and the Federal Home Loan Mortgage 
Corporation.
    (n) Federal residential building means any residential building to 
be constructed by or for the use of any Federal agency in the 
Continental U.S., Alaska, or Hawaii that is not legally subject to state 
or local building codes or similar requirements.
    (o) Life cycle cost means the minimum life cycle cost calculated by 
using a methodology specified in subpart A of 10 CFR part 436.
    (p) Point system means the tables that display the effect of the set 
of energy conservation measures on the design energy consumption and 
energy costs of a residential building for a particular location, 
building type and fuel type.
    (q) Practicable optimum life cycle energy cost means the energy 
costs of the set of conservation measures that has the minimum life 
cycle cost to the Federal government incurred during a 25 year period 
and including the costs of construction, maintenance, operation, and 
replacement.
    (r) Project means the group of one or more Federal residential 
buildings to be built at a specific geographic location that are 
included by a Federal agency in specifications issued or used by a 
Federal agency for design or construction of the buildings.
    (s) Prototype means a fundamental house design based on typical 
construction assumptions. The nine prototypes in COSTSAFR are: single-
section manufactured house, double-section manufactured house, ranch-
style house, two-story house, split-level house, mid-unit apartment, 
end-unit apartment, mid-unit townhouse, end-unit townhouse.

[[Page 618]]

    (t) Residential building means a new building that is designed to be 
constructed and developed for residential occupancy.
    (u) Set of conservation options means the combination of envelope 
design and equipment measures that influences the long term energy use 
in a building designed to maintain a minimum of ventilation level of 0.7 
air changes per hour, including the heating and cooling equipment, 
domestic hot water equipment, glazing, insulation, refrigerators and air 
infiltration control measures.
    (v) Shading coefficient means the ratio of the heat gains through 
windows, with or without integral shading devices, to that occurring 
through unshaded, \1/8\-inch clear glass.
    (w) Total annual coil load means the energy for space heating and/or 
cooling with no adjustment for HVAC equipment efficiency.

[56 FR 3772, Jan. 31, 1991]