The Institute of Environmental Sciences and Technology (IEST) is the leading technical, nonprofit membership association that connects professionals who deal with controlled environments. We give you technical guidance through International Standards, Recommended Practices, and education programs developed by experts in the fields of contamination control, environmental test and reliability, and nanotechnology facilities.  More..

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Member Action Item: 
Renew Your IEST Membership Early
Memberships expire June 30, 2025.
Renew early to help IEST save costs. When you renew early, we send fewer invoices and make fewer phone calls, allowing IEST to allocate those funds to programs that benefit our members. Renew Your Membership.

UPCOMING TRAINING AND CONFERENCES

Hard to Kill Stuff: Radiation and Disinfectant Resistance in Microorganisms Webinar
June 11, 2025
Virtual

Practical Considerations for Implementing a GMP Annex 1 CCS: Non-viable Monitoring Webinar
June 17, 2025
Virtual

Understanding Accelerated Life Testing, Highly Accelerated Life Testing, and Environmental Stress Screening Methods Webinar
June 24, 2025
Virtual

Level 1 Data Center Critical Cleaning Protocols Webinar
August 26, 2025
Virtual

How to Test and Qualify Products to MIL-STD-810 Training Series
September 23-25, 2025
Downers Grove, Illinois or Virtual

EDUCON 2025
November 10-13, 2025
Schaumburg, Illinois

See full calendar

IEST's Statement on Inclusion and Diversity

COVID-19 IEST Statement