International Registry of Radiation Safety Officers

3551 Moore-Duncan Hwy
Moore,SC 29369
Tel: 864.574.6415
FAX: 864.576.4992

-President: Steve Fowler/Fowler Assoc.
-Vice President: Hans Wiegert
-Secretary/Teasurer: Jan Fowler/Fowler Assoc

Andy Anderson/ Sealed Air Corp-
Stevie Hazen/ Administrator
Raymond Rouse/ TVA-----------------
Mike Ledsome/ WS Technologies--
Steve Waldrop/ The Rad Journal---


Members List


IRRSO is the Only Organization Specifically for Radiation Safety Officers


IRRSO is a not for profit organization that provides a central certification and registry of Radiation Safety Officers. IRRSO specializes in the industrial use of radiation processing such as, but not limited to: nuclear gauging, electron beams, ion implantation and nuclear sterilizers. The purpose of this registry is to provide credibility to the profession of Radiation Safety Officers. The purpose of IRRSO is to develop a practical means for the protection of mankind and its environment from the harmful effects of radiation processing through scientific knowledge. This will enhance radiation utilization for the benefit of mankind.


Adopted in the First Meeting of the IRRSO on February 25,1998, the name of the registry is: The International Registry of Radiation Safety Officers and may be referred to as IRRSO

History and Formation

IRRSO was founded by Stephen Fowler and Darrell Gunderson under Fowler Associates, inc. in 1993. IRRSO registered its first six Radiation Safety Officers, which formed the first Board of Directors. This action established the registry with an independent Board of Directors and By-Laws herein stated. The names of the first six RSO's registered are:

Stephen Fowler: Fowler Associates, Inc.

Darrell Gunderson: Cryovac Division of WR Grace

Bobby Wilkins: Cryovac Division of WR Grace

Peter Bullionis: Cryovac Division of WR Grace

Daniel Miedzinski: Cryovac Division of WR Grace

Randy Wingo : Cryovac Division of WR Grace

The first meeting of IRRSO was on February 25, 1998. At this meeting the IRRSO was formed as an independent registry with the election of Stephen Fowler as President, Bobby Wilkins as Vice President and Janice Fowler as Secretary/Treasurer.












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The Gunderson Award

The Gunderson award was founded in 1997 and is named after Darrell Gunderson - a co-founder of IRRSO. It is given periodically for

" Outstanding Achievement in Radiation Safety and Technology."