Center Leadership

The Environmental, Health & Safety Audit Center (EHSAC) is a specialty center of The IIA led by Center Director Tammy Wyche and supported by IIA staff and a group of experienced environmental, health and safety auditing profession volunteers.

Environmental, Health & Safety Advisory Board

The EHSAC is dedicated to advancing auditors in the environmental, health and safety profession. Advisory board members are elected throughout the year as needed and serve a term of three years.

The EHSAC Advisory Board serves in an advisory capacity and is responsible for developing the strategic initiatives to enhance the value of IIA membership for environmental, health and safety auditors.

Chairman: July 2019- June 2021
Roy A. Litzenberg, CPEA
EH&S Audit Manager
Audit & Advisory Services
Koch Industries EHS

Vice Chairman: July 2019 – June 2021
Colleen Webster, P.E.: Board Member 2018-2020
Senior Manager | Risk Transformation
Ernst & Young LLP

Gail Ankiewicz, Board Member 2017 - 2020
Specialty Technical Publishers

Michael R. Green, Ph.D., MBA, CPEA: Board Member 2017-2020
Senior Advisor
Environmental Standards, Inc.

Lawrence Heim, CPEA: Board Member 2018-2020
Managing Director
Director of Partnerships and Innovation
Responsible Business Alliance

Brett D. Heinrich, Board Member 2019-2021

Douglas Hileman, CRMA, CPEA, FSA, P.E.: Board Member 2019-2021
Douglas Hileman Consulting LLC

Carrie F. Ramirez, CIA, CHMM, CDGP: Board Member 2017-2019
Senior Manager, GWS Validation and Alignment
General Motors

Denise Rivera, CPEA, CPSA, Board Member 2017-2019
Associate Director, EHS Audit
Global Environmental, Health, Safety, and Sustainability
Bristol-Myers Squibb

Jamie L. White, CPEA, CESCO Board Member 2017-2019
Director, Global EHS Standards and Assurance
Universal Parks and Resorts

Tammy Wyche 

Center Director Tammy Wyche