The Indoor Environments Association, formerly known as AARST, addresses radon, vapor intrusion, and other contaminants of concern in the built environment.

Volume 23 • No. 16 • April 2025
News and Events for the Radon and Vapor Intrusion Industry
2nd Public Review: SG-OMM Long-Term Stewardship of Radon and Soil Gas Hazards
This standard or practice provides prescriptive requirements and guidance for long-term management of hazards associated exposure to indoor radon gas and chemical vapors, to include:
- monitoring radon and soil gas hazards across time to protect building occupants, and
- continued operation and maintenance of systems designed to reduce soil gas hazards.
The requirements in this standard of practice are applicable to all buildings intended for occupancy, except dwellings where the owner is both the occupant and responsible party for maintaining stewardship of radon and soil gas hazards.
This standard does not contain requirements for compliance by professional service providers.
DEADLINE for comments is April 21st, 2025 – CLICK HERE to participate.
FHFA Ends Requiring Radon Testing and Mitigation Policies
The Federal Housing Finance Agency’s Director, William J. Pulte, terminated FHFA’s 2022 directive requiring Fannie Mae and Freddie Mac (the Enterprises) to adopt and implement radon policies for multifamily properties in 2023 because the policies “added time, expense, and operational complexity.”
FHFA did not direct Fannie Mae and Freddie Mac to rescind their policies; in fact, both Enterprises had radon policies prior to 2023.
FHFA is not prohibiting lenders and borrowers from addressing radon during environmental due diligence for their multifamily loans. The Indoor Environments Association (IEA) urges lenders, property owners, developers, responsible parties, and others involved in multifamily loan transactions to require effective radon testing and, where needed, mitigation.
FHFA’s action has the potential to increase risk of radon-induced lung cancer for hundreds of thousands of tenants across the US.
IEA Chapter Corner
Voting for the 2025 Heartland Chapter of IEA has closed and the results
are as follows:
President: Wes Hodgden Treasurer: Kraig Kilton
Secretary: Ron Rupp VP Kansas: Logan Lemkuhl
VP Missouri: Cherie Summa VP Iowa: Thomas Selgrade
VP Nebraska: Anthony Maeser
Thank you to these amazing volunteers for taking on these positions and
thank you to everyone who took the time to vote in this important
election and have your voice heard!
________________________________________________________________________
- Ohio Spring 2025 Virtual CEU Event | 4/17/25
- 28th Annual NEAARST Conference | 5/8/25
- IN Chapter Event: Downtown Indianapolis Pub Crawl | 8/13/25
Vapor Intrusion (VI) Mitigation Credential in Development
NRPP is developing the vapor intrusion (VI) mitigation specialist credential for qualified contractors whose work is compliant with established standards and who have met criteria for certification as defined in the Vapor Intrusion Mitigation Specialist job task analysis. NRPP needs help from those who perform/have performed or oversee/have overseen VI mitigation activities.
Why a VI Mitigation Credential?
Currently, the absence of a uniform approach to VI mitigation systems, as well as the lack of minimum criteria for entry into the profession or an indicator of proficiency in VI mitigation has contributed to several challenges in the VI mitigation industry across the US. The issues include unevenly applied standards, deviations from system design during construction of new structures, inadequate communication between designers, general contractors, and installers, the absence of installation documentation, and insufficient performance monitoring. It’s been reported by environmental consultants and state regulators that the lack of fundamental and consistent understanding of system requirements and quality control requirements has resulted in inadequate mitigation systems and an increased potential for sub-standard and deficient system performance, and has created challenges for diagnosing system performance and developing remedies to poor system performance.
Only twenty states require compliance with standards for radon mitigation and most require compliance with the EPA-recommended ANSI-AARST standard. There is no parallel regulatory infrastructure for VI mitigation in any states, in part due to the absence of a system for determining proficiency.
VI mitigation contractors can enter the marketplace and offer mitigation services having no prior training or assessment of proficiency. Environmental firms, responsible parties, and others need to be able to identify VI professionals who are knowledgeable and skilled in the reduction of chemical vapor intrusion and installation of vapor intrusion mitigation systems. NRPP is addressing this need by creating a certification program for VI mitigation specialists.
The Certification Development Process
NRPP’s certification development process began with a formal job task analysis (JTA) – a process by which a representative group of subject matter experts identified the essential elements of competent practice as a VI mitigation specialist. The JTA will be used to define the requirements for certification and, as such, it is critical that these elements are validated before being considered part of a certification program. NRPP is requesting feedback from current VI professionals, in the form of a survey, to learn the extent to which the tasks within the job task analysis are relevant to competent practice as a VI mitigation specialist. If you perform, have performed or oversee/have overseen VI mitigation activities, please complete this JTA survey and provide your input.
It is anticipated that the VI mitigation specialist certification will be available to personnel who are both qualified to perform mitigation and knowledgeable about Hazardous Waste Operations and Emergency Response but have not necessarily been trained or certified in radon mitigation (or measurement). Pilot testing for the VI Mitigation Specialist is expected to occur by the end of 2025.
FREE Smoking Cessation Program Continues
.
The Indoor Environments Association is excited to announce the launch of a new campaign, which began August 1st, in partnership with the American Lung Association.
You can now access the Freedom From Smoking® Plus program for FREE, a $99.95 value! This digital quit smoking program helps you or your loved ones create a personalized quit plan and provides a full year of support with expert guidance and resources. This is available to all IEA members, radon and VI professionals, and their families. For more information and to sign up, CLICK HERE.
Welcome to the Newest
NRPP-Certified Professionals!
Aaron Chew (CO), Abigail L Eipert (KY), Chad Smith (UT), Chad Warhold (PA), Christopher Davis (CO), Clark Wilbanks (MO), Cole Naone (OR), Courtney E Hudson (GA), Dakota Callahan (SC), Dalton Schmersal (KY), Daniel J Ertter (OH), Darrell W Kinnett (KY), David C Hanson (CO), Denny Volz (IN), Devin Snyder (IL), Dylan Hay-Chapman (OR), Fernando Garcia Osorio (CA), Gabriel Taylor (NC), George Kostopoulos (TN), Greg Wilkinson (NC), Gregory Aldridge (WI), Hunter Sherner (MT), Jamie D Cox (AL), Jan-Michael Barlow (OR), John Sullivan (MT), Jose Erick Argueta Delcid (CO), Joseph P Collier (KS), Joshua P Hines (IN), Joshua V Vidal (CO), Joshua Walker (UT), Kenneth C Walsh (CO), Kevin R Curtin (GA), Kevin R Mone (NJ), Lance D Leigh (KY), Larry S Hoeger (NJ), Lee Ruble (TN), Lourdes B Buenrostro (CA), Luke Mechling (IN), Marc Gabriel (NC), Mark Rogerson (CT), Mason Caperton (CO), Matthew Burich (CA), Matthew J Wheeler (MN), Matthew Sewell (WA), Mauray Tolbert (CO), Mayra Piedrahita Escobar (NE), Meagan Ramirez (TX), Michael M Williams (CO), Michael Voorhis (FL), Nathan J Strassmaier (OR), Nathaniel H Rosenberg (CO), Neil Hawks (MT), Nicholas G Rice (UT), Noah N Brooks (CO), Peter Oldmixon (CO), Reese Myers (WA), Richard Moody (CO), Robert Head (CO), Robin R Sykes (CO), Samuel Lewis (SD), Shane Stark (KY), Stephen Lee Smith (VA), Toufic (Ted) Zeidan (CA), Tracey Y. Capuano (OH), Tyler Hoskins (CO), Tyler J Norris (WY), Vanda Jakabova (SW), Walter Widdis (MT), William J Sweat (IN), Zachery Thomas (KY)
Welcome to the Newest
Members of the
Indoor Environments Association!
Bradley Douglas (FL), Cares Bailey (IL), Chad Smith (UT), Christine McCarl (PA), Frederic Couri (IL), James P Sheridan (CO), Jeff LaCroix (MA), Jessica White (MA), Justin Thomas (MA), Kenneth W Naujock (WI), Mariah Taavon (MA), Rebecca Pitcock (IN), Tyson Hoff (AZ)
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.