Senior Accessibility Specialist and Technical Assistance Coordinator US Access Board Rex Pace serves as a senior accessibility specialist and technical assistance coordinator. In this capacity, he oversees the agency's provision of technical assistance to the public on accessible design and the Board 's ADA and ABA Accessibility Guidelines, including its toll-free help line and development of published guidance. Pace has over 23 years of experience in accessible design. Most recently, he served as an accessibility architect with the Department of Justice's Disability Rights Section where he provided technical and architectural assistance on the ADA standards to staff attorneys and management and helped produce and illustrate technical assistance materials for public distribution. Before joining DOJ in 2006, he operated a consultancy specializing in accessible and universal design in Raleigh, North Carolina and earlier served as coordinator of technical assistance and a lead designer for the Center for Universal Design at North Carolina State University. He began work in this field in 1987 as a designer and illustrator at Barrier Free Environments, Inc. under his mentor Ron Mace, FAIA, a leading pioneer and renowned expert in accessible design.

Coordinator of Public Affairs Office of Technical and Information Services US Access Board Dave Yanchulis is a graduate of George Washington University (1987) and has worked at the Access Board since 1988 as an Accessibility Specialist responsible for technical assistance to Federal, state, and local governments and private sector entities regarding the requirements of the Architectural Barriers Act (ABA) of 1968 and the Americans with Disabilities Act (ADA) of 1990. In 1994, he was appointed Coordinator of Research, a position created to manage the research efforts that underpin the development of accessibility guidelines. Dave has also been active in rulemaking for both Title II and Title III guidelines for buildings and facilities and for transit vehicles. Most recently, he has developed guidelines for the accessibility of correctional and judicial facilities constructed by state and local governments and for elements used by children. Dave's magnum opus is the ADAAG Technical Assistance Manual, a comprehensive advisory on applying accessibility guidelines to design and construction projects. In May of 1998, Dave was appointed Coordinator of Public Affairs, taking responsibility for the Board's public outreach activities, including its bi-monthly newsletter, Access Currents.

Senior Accessibility Specialist Technical Assistance Coordinator Office of Technical and Information Services Marsha Mazz joined the staff of the Access Board in 1989 and is a graduate of the University of Massachusetts. She holds the position of Technical Assistance Coordinator and is a Senior Accessibility Specialist. Ms. Mazz provides technical input to and oversight of the continued development of the ADA Accessibility Guidelines. She oversees the technical assistance program that includes the Board's toll-free responses to questions about access in buildings and facilities covered by the ADA and the Architectural Barriers Act (ABA). In addition, she is the Access Board's representative to the model code organizations and is on the ICC/ANSI A117 Committee on Architectural Features and Site Design of Public Buildings and Residential Structures for Persons with Disabilities and the ASME A18 Committee on Safety Standard for Platform Lifts and Stairway Chairlifts. Ms. Mazz's prior experience includes service as a program manager and advocacy director at a center for independent living, a member of the Maryland State Planning Council on Developmental Disabilities, and a Board member for the National Council on Independent Living. Additionally, working for the Disabled Student Services office, she assisted a major state university to respond to the requirements of Section 504 of the Rehabilitation Act of 1973. She has also served as past Chair of the Prince George's County (MD) Commission on Persons with Disabilities and as Chair of the Washington Metropolitan Area Advisory Committee on Transportation for People with Disabilities.