IECC Commercial Proposals

2021 IECC: Flexibility for the Future | 2021 IECC: Ready and Resilient | 2021 IECC: Residential

The following proposals address a wide range of issues and improve the code by improving efficiency, clarifying requirements and creating greater flexibility for code users. Official public comments which suggest changes to the proposal are also included below.


Code Change Proposal Number and Description in Numerical Order

CE 9 Part 2. Approved as Submitted by Code Development Committee. The proposal merely clarifies that energy conservation must be considered in assessing alternatives to IECC requirements. Proponent: William Fay, Energy-Efficient Codes Coalition, representing Energy-Efficient Codes Coalition
Public Comments

CE 12 Part 2. Approved as Submitted by Code Development Committee. Improves the thermal envelope of new buildings constructed to meet “above code” programs. Proponent: Harry Misuriello, American Council for an Energy-Efficient Economy, representing American Council for an Energy-Efficient Economy

CE 21. Approved as Modified by Public Comment 1. This proposal updates the definitions of biomass-related renewable energy for greater clarity and specificity in order to ensure that biomass-based sources of energy can reasonably be considered renewable energy. Proponent: Jim Edelson, representing New Buildings Institute
Public Comments

CE 35. Approved as Modified by Code Development Committee. Above-Grade Wall Definition.Clarifies the definition of above-grade wall insulation to ensure that all elements of the exterior wall, including edges of floors, are insulated. Proponent: Eric Makela, New Buildings Institute, representing Northwest Energy Codes Group

CE 61. Approved as Submitted by Code Development Committee. Results in better roof insulation. Proponent: William Fay, Energy-Efficient Codes Coalition, representing Energy-Efficient Codes Coalition; Harry Misuriello, American Council for an Energy-Efficient Economy, representing American Council for an Energy-Efficient Economy

CE 63. Approved as Submitted by Code Development Committee. Results in more insulation in above-grade and below-grade walls. Proponent: William Fay, Energy-Efficient Codes Coalition, representing Energy-Efficient Codes Coalition; Harry Misuriello, American Council for an Energy-Efficient Economy, representing American Council for an Energy-Efficient Economy

CE 64. Approved as Submitted by Code Development Committee. Results in more insulation in above-grade and below-grade walls. Proponent: William Fay, Energy-Efficient Codes Coalition, representing Energy-Efficient Codes Coalition; Harry Misuriello, American Council for an Energy-Efficient Economy, representing American Council for an Energy-Efficient Economy

CE 66. Approved as Submitted by Code Development Committee. Results in more efficient floors. Proponent: William Fay, Energy-Efficient Codes Coalition, representing Energy-Efficient Codes Coalition; Harry Misuriello, American Council for an Energy-Efficient Economy, representing American Council for an Energy-Efficient Economy

CE 68. Approved as Submitted by Code Development Committee. Improves building efficiency by requiring more efficient low-capacity ventilation fans such as bathroom and exhaust fans. Proponent: William Fay, Energy-Efficient Codes Coalition, representing Energy-Efficient Codes Coalition; Harry Misuriello, American Council for an Energy-Efficient Economy, representing American Council for an Energy-Efficient Economy

CE 69. Approved as Submitted by Code Development Committee. Revises building envelope requirements (including thermal insulation, thermal envelope assembly). Proponent: William Fay, Energy-Efficient Codes Coalition, representing Energy-Efficient Codes Coalition; Harry Misuriello, representing American Council for an Energy-Efficient Economy
Public Comments

CE 87. Approved as Submitted by Code Development Committee. Results in reduced solar load on the building by requiring more stringent a solar heat gain coefficient (SHGC) values in all climate zones. SHGC must be based on window type (fixed or operable). Proponent: William Fay, Energy-Efficient Codes Coalition, representing Energy-Efficient Codes Coalition; Daniel Bresette, Alliance to Save Energy, representing Alliance to Save Energy; Maureen Guttman, BCAP-IBTS, representing BCAP-IBTS; Harry Misuriello, representing American Council for an Energy-Efficient Economy

CE 96. Approved as Modified by Code Development Committee. Increases whole-building efficiency by requiring air leakage testing. Proponent: Gayathri Vijayakumar, representing Steven Winter Associates, Inc.; Robert Schwarz, representing EnergyLogic + CE 97 Increases whole-building efficiency by requiring air leakage testing. Proponent: Eric Makela, New Buildings Institute, representing Northwest Energy Codes Group

CE 99. Approved as Modified by Code Development Committee. Increases whole-building efficiency by requiring air barrier verification/commissioning. Proponent: Eric Makela, New Buildings Institute, representing Northwest Energy Codes Group

CE 111. Approved as Modified by Code Development Committee. Improves building efficiency by detecting HVAC system failures in real time. Proponent: Marilyn Williams, representing National Electrical Manufacturers Association

CE 140. Approved as Modified by Public Comment 1. Improves building efficiency by requiring more efficient low-capacity ventilation fans such as bathroom and exhaust fans. Proponent: Eric Makela, representing New Buildings Institute; Mike Moore, Newport Ventures, representing Broan-NuTone

CE 162. Approved as Modified by Code Development Committee. Dwelling Unit Lighting Efficiency.Improves lighting efficiency in dwelling and sleeping units in commercial buildings (including high-rise multifamily). Proponent: Eric Makela, New Buildings Institute, representing New Buildings Institute

CE209. Approved as Modified by Code Development Committee. Indoor Horticulture Lighting.Improves building efficiency by requiring lighting used for plant growth or maintenance to meet an efficiency of 1.6 micromoles per Joule. Proponent: Eric Makela, New Buildings Institute, representing New Buildings Institute

CE 215. Approved as Modified by Code Development Committee. Improves building efficiency by ensuring building mechanical systems are functioning properly. Proponent: Marilyn Williams, representing National Electrical Manufacturers Association

CE 216. Approved as Modified by Code Development Committee. Improves building efficiency by requiring controlled plug load receptacles for offices, conference rooms, break rooms, etc. Proponent: Marilyn Williams, representing National Electrical Manufacturers Association

CE 217 Part 1. Approved as Modified by Code Development Committee. Electric Vehicle Ready Part 1 Results in EV-ready commercial buildings.

CE 217 Part 2. Approved as Submitted by Code Development Committee. Results in EV-ready residential building.

CE 226 C406 Dwelling/Sleeping Unit Lighting Efficiency. Approved as Modified by Code Development Committee. This proposal is one of the Section C406 options which is covered by the CE 218 proposal. It provides additional credit for installing a lighting system that is 15% more efficient than code or by installing more high efficacy lights (LED) in multi-family buildings.

CE 240 C406 Kitchen Equipment Additional Package. Approved as Submitted by Code Development Committee.This proposal is one of the Section C406 options which is covered by the CE 218 proposal. It provides points to builders for installing energy-efficient commercial kitchen cooking equipment.

CE 262. Approved as Submitted by Code Development Committee. Results in the installation of battery storage for onsite solar power generation. Proponent: Jim Edelson, representing New Buildings Institute
Public Comments


Contact Amy Cortese, NBI director of programs, at [email protected], with any questions.

Additional 2021 IECC Proposals

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