Submittal

9
installed on or in the building for all prior taxable years.
(b) Application to Multiple Taxpayers. If two or more taxpayers
install energy efficient heating, cooling, ventilation, and hot water property on or in the
same building, the aggregate amount of the § 179D deductions allowed to all such
taxpayers with respect to the building shall not exceed the amount determined under
section 2.04(2)(a) of this notice.
.05
Partially Qualifying Property: Energy Efficient Building Envelope Property.
(1)
In General. Energy efficient building envelope property is partially
qualifying property, within the meaning of section 2.01 of this notice, that satisfies both
of the following conditions:
(a) The property is installed as part of the building envelope of a
building; and
(b) It is certified that the building envelope that has been
incorporated into the building, or that the taxpayer plans to incorporate into the building
subsequent to the installation of such property, will reduce the total annual energy and
power costs with respect to combined usage of the building’s heating, cooling,
ventilation, hot water, and interior lighting systems by 16⅔ percent or more as
compared to a Reference Building that meets the minimum requirements of Standard
90.1-2001. The required 16⅔-percent reduction must be accomplished solely through
energy and power cost reductions for the heating, cooling, ventilation, hot water, and
interior lighting systems. Reductions in any other energy uses, such as receptacles,
process loads, refrigeration, cooking, and elevators, are not taken into account in