Final answer:
The Freedom of Information Act (FOIA) is the federal statute primarily designed to promote accountability and transparency in administrative agencies.
Step-by-step explanation:
The federal statute primarily designed to promote accountability and transparency in administrative agencies is the Freedom of Information Act (FOIA). Passed in 1966, FOIA requires the executive branch of the U.S. government to provide information requested by citizens and increases openness in the government. Citizens can request documents from the appropriate agencies, which may charge fees for the collection and copying of requested documentation.
FOIA also identifies certain data that does not need to be disclosed, such as human resource and medical records, national defense records, and material provided by confidential sources.