INTERNATIONAL ENERGY CONSERVATION CODE (IECC)
The International Energy Conservation Code (IECC) is a building
energy code created by the International Code Council. It is a model
code adopted by many state and municipal governments in the United
States for the establishment of minimum design and construction requirements
for energy efficiency, and is updated on a three-year cycle. The baseline
energy conservation requirements of the MA State Building Code are
the IECC with Massachusetts amendments, as approved by the Board of
Building Regulations and Standards and published in state regulations
as part of 780 CMR.
SPECIALIZED ENERGY CODE
Codified by the entirety of 225 CMR 22 and 23 including Appendices
RC and CC, the Specialized Energy Code adds residential and commercial
appendices to the Massachusetts Stretch Energy Code, based on amendments
to the respective net-zero appendices of the International Energy
Conservation Code (IECC) to incorporate the energy efficiency of the
Stretch Energy Code and further reduce the climate impacts of buildings
built to this code, with the goal of achieving net-zero greenhouse
gas emissions from the buildings sector no later than 2050.
STRETCH ENERGY CODE
Codified by the combination of 225 CMR 22 and 23, not including
Appendices RC and CC, the Stretch Energy Code is a comprehensive set
of amendments to the International Energy Conservation Code (IECC)
seeking to achieve all lifecycle cost-effective energy efficiency
in accordance with the Green Communities Act of 2008, as well as to
reduce the climate impacts of buildings built to this code.
The purpose of 225 CMR 22.00 and 23.00 including Appendices
RC and CC, also referred to as the "Specialized Energy Code," is to
provide a more energy efficient and low greenhouse gas emissions alternative
to the Stretch Energy Code or the baseline Massachusetts Energy Code,
applicable to the relevant sections of the building code for both
new construction and existing buildings.
This energy code applies to residential and commercial buildings.