The Indoor Environments Association, formerly known as AARST, addresses radon, vapor intrusion, and other contaminants of concern in the built environment.
Volume 37 • No. 30 • July 2026
News and Events for the Radon and Vapor Intrusion Industry
Regulation Revisions in Iowa
Effective July 1, Iowa’s radon mitigation and measurement regulations have been updated to remove restrictive terms, combine or eliminate duplicative content, and reflect current policies and procedures. The ANSI-AARST mitigation standards are now in effect in Iowa, replacing ASTM E2121 and EPA’s archived mitigation standard. References to previously adopted ANSI-AARST measurement standards were updated. With this change, radon work in 15 of the 20 regulated states relies exclusively on ANSI-AARST standards.
Standards Open for Public Review
Public Review of more proposed addenda updates
to ANSI/AARST MA-MFLB
Most of the proposed revision are the result of public comments received from users of this standard.
This standard of practice specifies procedures and minimum requirements when measuring radon concentrations in shared structures, or portions of shared structures, used for residential, non-residential, or mixed-use purposes to determine if radon mitigation is necessary to protect current and future occupants.
Click HERE to download and comment.
Deadline for Comments: July 20th, 2026
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Public Review of more proposed addenda updates
to ANSI/AARST SGM-SF-2023
There are seventeen topics addressed that result from public comments on ANSI/AARST SGM-SF 2023. Some topics cross into multiple sections of the standard.
This standard of practice specifies minimum requirements for methods that mitigate risks to occupants posed by radon gas, chemical vapors or other hazardous soil gases that are present within existing homes.
Click HERE to download and comment.
Deadline for Comments: July 27th, 2026
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Public Review of more proposed revisions
to ANSI/AARST MS-PC-2022
The proposed revisions to MS-PC address two new chapters regarding consumer-grade electronic radon monitors. The purpose is to set precedence on appropriate quality, accuracy disclosures and uniform instructions for such monitors that lack critical features required for professional use.
Most of the proposed revision are the result of public comments received from users of this standard.
This standard specifies minimum performance criteria and testing procedures for instruments and/or systems designed to quantify the concentration of 222Rn gas in air. These are consistent with general performance criteria applicable to the wide variety of radon measurement devices used for indoor measurements, primarily in residential environments or buildings not associated with the possession or handling of radioactive materials.
Click HERE to download and comment.
Deadline for Comments: August 3rd, 2026
NRPP Certification Council: Application for Open Seats
NRPP is now accepting applications for upcoming vacancies on the NRPP Certification Council. The Certification Council governs the NRPP certification programs and sets the direction and requirements for NRPP’s credentials. The Council oversees the NRPP compliance program and establishes certification policies, ensuring they are impartial and that certification decisions are free from conflicts of interest.
More information about the Certification Council, including the qualifications for each seat, can be found on the NRPP website.
If you are interested in serving on NRPP’s Certification Council and you meet the qualifications, complete this form and submit a resume or personal experience essay.
Applications will be accepted through October 1, 2026. The NRPP Certification Management Committee will review all applications and make their recommendations to the Executive Committee of IEA’s Board of Directors who will approve the final seats. Terms will begin November 1, 2026.
Deadline Extended for IEA Awards Nominations
EXTENDED UNTIL JULY 17: Indoor Environments Association invites nominations for eight association awards that recognize Community Leaders who advance the profession. Please consider supporting your colleagues, employees, and community members by making them candidates for an IEA Award. Submit nominations HERE.
Award Descriptions:
1. Jack Bartholomew Award (est. 2014) – for recognized excellence by the Indoor Environments Association in the field of professional radon education.
2. IEA Governance Award (est. 2006) – for significant leadership contributing to the Association’s governance.
3. Elizabeth Hoffman Award (est. 2014) – for advocacy by a citizen-advocate contributing to risk reduction awareness and/or radon policy.
4. Community Impact Award – to recognize an industry partner (e.g. real estate agent/broker, builder, home inspector, state radon or VOC program official, public housing authority, journalist, activist, community organizer, consultant etc.), who advocated for radon and/or vapor intrusion awareness in their community. (Standing Annual Award)
5. Community Policy Award – to recognize an individual (e.g. federal, state, or local policymaker) who has an impact on radon and/or vapor intrusion policies in our country.
6. IEA Chapter Leadership Award – to recognize an individual or the entire Chapter. (Standing Annual Award)
7. IEA Science / Applied Science Award – to recognize a significant accomplishment in the advancement of indoor environmental health.
8. Scott-Åkerblom Award (est. 2012) – to recognize an idea, application of a new technique, or another creative achievement, which has become or promises to become important for the radon professionals or the radon industry.
Read the Latest Issue!
Welcome to the Newest
NRPP-Certified Professionals!
Anthony A Villerreal (IA), Arthur Kucharski (IL), Avi Kotek (MD), Bayonna A Brown (CO), Brady Metzger (MI), Bryce Carr (IA), Caleb Bell (WA), Candace S Bray (CO), Carlo J Torres (CA), Chris Thiessen (NV), Christopher D Beros (CO), Christopher Ian Durell (CA), Dana Renay (IN), Daniel Frayman (CA), Daniel Karako (CO), Dante Wydra (CO), David J Fitzell (WA), Eleni Kiliaris (MI), Eric Jannsen (MA), Eric Park (TX), Eugene Fercodini (CT), Gabriel M Macias (CA), Grace A Purcell (GA), Griffin Sturdevant (SD), Hans Wammel (CO), Ian R Goodrich (NE), Isaac Amabile (CO), Ivan Alejandro Molina (GA), Jacob Spainhour (VA), James E Brown (CA), James R Kirby (UT), Jasper T Ronneberg (CO), Jayden D Allen (VA), Jeff Guyton (MI), Jesse Dransfield (CO), Jessica J Lustyk (MI), John Atkinson (OH), John J Pellegrino (MD), Joseph Gangidino (NJ), Joshua Johnson (CO), Joshua McPherson (OR), Justin Lighton (NC), Kyle Bratcher (TN), Kyle N Dever (OR), Laura L Bouley (RI), Mark A Jones (CO), Michael Armbrister (VA), Michael D Mastalka (CO), Michael LeFever (NY), Noah Hook (MD), Robert Hansen (GA), Roger Spalding (KY), Sean O’Connor (DE), Taylor Heath (OK), Thomas Lichtenstein (MO)
Welcome to the Newest
Members of the
Indoor Environments Association!
Indoor Environments Association is a nonprofit, professional organization of members who are dedicated to the highest standard of excellence and ethical performance of hazard identification and abatement of radon, chemical vapor intrusion, and other contaminants of concern in the built environment. The organization primarily strives to advance the interests of its members through developing industry standards, certifying technical proficiency, enabling advancement of public policy, and communicating health risks to the public.
Editorial Content Wanted: Indoor Environments Association (AARST) publishes content over two platforms. We are interested in radon and vapor intrusion interest stories, technical papers, business topics, health advancements/detection regarding radon-related issues, and more. Please submit content for consideration to editor@aarst.org.