EPA to Host Webinar on Newly Released Indoor AirPlus Version 2
The Environmental Protections Agency (EPA) has updated its Indoor AirPlus (IAP) program to include some new features. IAP Version 2 is available for homes and multifamily buildings permitted on or after August 1, 2024. The Version 1 specifications and program framework can also continue to be used for homes and multifamily buildings permitted before January 2026 (eligibility dates subject to change). The EPA is set to host a webinar on September 5 12:00-12:45 p.m. EDT, which will provide an overview of the updated IAP website and the revised program requirements.
In response to stakeholder feedback, the new Indoor AirPlus program has a tiered set of certification requirements for two separate labels. IAP V2 provides a focus on strategies to improve indoor air quality (IAQ) that can be implemented affordably to further assist disadvantaged communities.
A key component of the IAP V2 updates is that ENERGY STAR will only be a prerequisite for the IAP V2 Gold Certification. But builders who have never done ENERGY STAR before may now earn Indoor AirPlus Certification independently if they choose to do so.
Builders who prioritize green features in their projects – including some NAHB members - tend to stay up-to-date with new certifications. NAHB Healthier Homes & Communities Subcommittee Chair Marla Cloos believes this updated certification will be helpful for fellow members. “The new changes will benefit our members as we strive to improve the health of our indoor environment,” said Cloos.
Other elements addressed in Version 2 include: addressing affordability; performance-based and outcome-based approaches to IAQ; strategies to improve IAQ protections in a tiered program model; enhanced IAQ and energy efficiency with Indoor AirPlus Gold; verification process updates; oversight and quality assurance by home certification organizations; and expiration and re-certification.
Learn more and tune into the webinar on EPA.gov.
In response to stakeholder feedback, the new Indoor AirPlus program has a tiered set of certification requirements for two separate labels. IAP V2 provides a focus on strategies to improve indoor air quality (IAQ) that can be implemented affordably to further assist disadvantaged communities.
A key component of the IAP V2 updates is that ENERGY STAR will only be a prerequisite for the IAP V2 Gold Certification. But builders who have never done ENERGY STAR before may now earn Indoor AirPlus Certification independently if they choose to do so.
Builders who prioritize green features in their projects – including some NAHB members - tend to stay up-to-date with new certifications. NAHB Healthier Homes & Communities Subcommittee Chair Marla Cloos believes this updated certification will be helpful for fellow members. “The new changes will benefit our members as we strive to improve the health of our indoor environment,” said Cloos.
Other elements addressed in Version 2 include: addressing affordability; performance-based and outcome-based approaches to IAQ; strategies to improve IAQ protections in a tiered program model; enhanced IAQ and energy efficiency with Indoor AirPlus Gold; verification process updates; oversight and quality assurance by home certification organizations; and expiration and re-certification.
Learn more and tune into the webinar on EPA.gov.
Latest from NAHBNow
Advocacy
Dec 10, 2025
NAHB Awards HBAs $60K to Support Advocacy EffortsThe NAHB State and Local Government Affairs Committee recently awarded several HBAs financial assistance through the State and Local Issues Fund.
Labor
Dec 09, 2025
Construction Labor Market StableThe count of open, unfilled positions in the construction industry was relatively unchanged in October, per the Bureau of Labor Statistics Job Openings and Labor Turnover Survey (JOLTS). The current level of open jobs is down measurably from two years ago due to declines in construction activity, particularly in housing.
Latest Economic News
Economics
Dec 09, 2025
Mortgage Activity Continued to Climb in NovemberMortgage activity continued to climb in November, posting the largest year-over-year increase in more than five years. Every major category increased on a year-over-year basis as mortgage rates continue to trend lower, led by strong increases in refinancing and adjustable-rate mortgage activity.
Economics
Dec 08, 2025
Community Associations: A Growing Trend in 2024In 2024, 65.7% of all new single-family homes started were built within a community or homeowner’s association. This share increased from the 64.8% recorded in 2023, according to data tabulated from the Census Bureau’s Survey of Construction (SOC).
Economics
Dec 05, 2025
Mortgage Rates Continue to Trend Lower in NovemberThe average mortgage rate in November continued to trend lower to its lowest level in over a year. According to Freddie Mac, the 30-year fixed-rate mortgage averaged 6.24% in November, 2 basis points (bps) lower than in October. Meanwhile, the 15-year rate increased 3 bps to 5.51%.