Which federal agency is responsible for enforcing Title III of the ADA?

The U.S. Department of Justice (DOJ) is responsible for enforcing Title III of the Americans with Disabilities Act (ADA), which addresses public accommodations. Title III prohibits discrimination on the basis of disability in places of public accommodation and requires that these spaces are accessible to individuals with disabilities. This enforcement includes investigating complaints, conducting outreach and guidance activities, and ensuring that public entities comply with the law.

In contrast, the other agencies mentioned have distinct roles that do not pertain directly to the enforcement of Title III. The Federal Communications Commission deals primarily with communications issues, the Department of Labor focuses on labor laws and employment rights, and the Environmental Protection Agency is dedicated to environmental protection and regulations. As such, the DOJ's specific mandate encompasses civil rights enforcement, making it the correct answer in the context of Title III of the ADA.