New Jersey Commercial Uniform Construction Code (NJAC 5:23-3.18)

-Revised, stricter opaque element and fenestration requirements at a reasonable level of cost-effectiveness
-Improvements to daylighting controls, space-by-space lighting power density limits, and thresholds for toplighting
-Revised equipment efficiencies for heat pumps, packaged terminal air conditioners (PTACs), single package vertical heat pumps and air conditioners (SPVHP and SPVAC), and evaporative condensers
-New provisions for commercial refrigeration equipment and improved controls for heat rejection and boiler equipment
-Improved requirements for expanded use of energy recovery, small-motor efficiencies, and fan power control and credits
-Improved equipment efficiencies for chillers
-Clarifications for the use of prescriptive provisions when performing building energy use modeling, and revisions to enhance capturing daylighting when performing modeling calculations
-A new alternate compliance path to Section 6, "Heating, Ventilating, and Air-Conditioning," for computer room systems, developed with ASHRAE Technical Committee (TC) 9.9.

Lighting Alterations. For the alteration of any lighting system in an interior space, that space shall comply with the lighting power density (LPD) requirements of Section 9 applicable to that space and the automatic shutoff requirements of Section 9.4.1.1. For the alteration of any lighting system in an exterior building application, that lighting system shall comply with the lighting power density (LPD)
requirements of Section 9 applicable to the area illuminated by that lighting system and the applicable control requirements of Sections 9.4.1.4(a) and 9.4.1.4(b). Such alterations shall include all luminaires that are added, replaced or removed. This requirement shall also be met for alterations that involve only the replacement of lamps plus ballasts. Alterations do not include routine maintenance or repair situations.

7. SERVICE WATER HEATING
7.1 General
7.1.1 Service Water Heating Scope
7.1.1.1 New Buildings. Service water heating systems
and equipment shall comply with the requirements of this
section as described in Section 7.2.
7.1.1.2 Additions to Existing Buildings. Service water
heating systems and equipment shall comply with the requirements of this section.
Exception: When the service water heating to an addition is provided by existing service water heating systems and equipment, such systems and equipment
shall not be required to comply with this standard.
However, any new systems or equipment installed
must comply with specific requirements applicable to
those systems and equipment.
7.1.1.3 Alterations to Existing Buildings. Building service water heating equipment installed as a direct replacement
for existing building service water heating equipment shall
comply with the requirements of Section 7 applicable to the
equipment being replaced. New and replacement piping shall
comply with Section 7.4.3.

Envelope Alterations. Alterations to the building
envelope shall comply with the requirements of Section 5 for
insulation, air leakage, and fenestration applicable to those
specific portions of the building that are being altered.

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