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
Awards
Oct 03, 2025
NAHB Awards Deadline Extended to Oct. 20Interested applicants for NAHB’s prestigious award programs now have additional time to submit top projects and individuals for consideration. Don't miss your chance - apply by Monday, Oct. 20.
Sponsored Content
Oct 03, 2025
Fast Money, Fewer HeadachesEvery week lost to underwriting is a week you’re not building, selling, or scaling. Delays push projects out of prime seasons, tighten cash flow, and leave crews idle. And when banks already move at their own pace, builders who aren’t prepared can get stuck at the back of the line.
Latest Economic News
Economics
Oct 03, 2025
Supply-Side Cost Pressures Drove Housing as Inflation Leader in 2024Though the rate of inflation peaked in June 2022, consumer prices continued to increase throughout 2023 and 2024 as inflation drove further price growth, according to 2024 CPI review from the Bureau of Labor Statistics.
Economics
Oct 02, 2025
Square Foot Prices Moderate in 2024Median square foot prices for new single-family detached (SFD) homes started in 2024 grew modestly, according to NAHB’s analysis of the latest Survey of Construction (SOC) data. For custom, or contractor-built, homes, the median price was $166 per square foot of floor space, up slightly from $162 in 2023.
Economics
Oct 02, 2025
17% of NAHB Builders Built Age-Restricted Housing in 2024Only 17% of NAHB builder members build age-restricted housing for people age 55 or older, according to 2024 Member Census. This is up two percentage points from the previous year. However, this share has remained within a narrow band (15%-17%) since the question was added to the member census in 2009.