Skip Ribbon Commands
Skip to main content
The Institute of Internal Auditors North AmericaBreadcrumb SeparatorNewsBreadcrumb SeparatorIIA Society Emeritus Member Turns 100

IIA Society Emeritus Member Turns 100

IIA Global Headquarters, on behalf of its board of directors and 180,000 members worldwide, congratulates Mortimer Dittenhofer, Society Emeritus, who turns 100 years old on January 13!

Dittenhofer joined The IIA in 1969, and his professional life is one that could fill the pages of a history book. He remains the only internal audit practitioner to receive both the Bradford Cadmus Memorial and Leon R. Radde Educator of the Year awards. Even more impressive, Dittenhofer is one of only four recipients of The IIA’s Lifetime Achievement Award. Just last year, he was inducted into The IIA’s American Hall of Distinguished Audit Practitioners.

Dittenhofer is a former government accountant turned educator. While on staff at the GAO, he directed the development and implementation of the government audit standards, known as “the Yellow Book.” He also served as executive vice president of the Association of Government Accountants. This year, as The IIA prepares to launch its American Center for Government Auditors, the work he did to support government auditing is especially top of mind and still resonates with hundreds of thousands of professionals working in the public sector.

The mark that Dittenhofer has made on the internal audit profession is also evident in the many published works he has authored over the years. In fact, the popular Sawyer’s Internal Auditing, which he co-wrote with Larry Sawyer, is still considered the most comprehensive reference book for internal auditing and has evolved into a three-volume set in its 6th edition.

Dittenhofer’s professional work is not only having an impact on today’s practice of internal auditing, but also on future generations. He helped lay the foundation for internal audit education by establishing The IIA’s Endorsed Internal Auditing Program at Florida International University. That program has transitioned into what is known today as the Internal Auditing Education Partnership, which has flourished and now exists at 45 colleges and universities around the world.

Mort Dittenhofer’s legacy continues to positively influence young professionals looking to pursue excellence in the field of internal auditing. Happy birthday, Mort!

Gene Dodaro with Mort Dittenhofer

Mort Dittenhofer (right) visits with U.S. Comptroller General Gene Dodaro in December 2013, when he was honored as the “father of the GAO Yellow Book.”