Aircraft inspection, government

Coast Guard (except academy)

Federal Aviation Administration (except air traffic control)

Licensing of transportation equipment, facilities, and services

Merchant Marine (except academy)

Motor carrier licensing and inspection offices

Motor vehicle licensing offices, government

National Transportation Safety Board

Port authorities and districts, nonoperating

Public transportation commissions, nonoperating

Railroad and warehouse commissions, nonoperating

Transit systems and authorities, nonoperating

Transportation departments, nonoperating

Transportation regulatory agencies

Transportation safety programs, government