This industry comprises establishments of the federal government primarily engaged in rendering judgements and interpreting the law, including the arbitration of civil actions. Appeal boards of federal jurisdiction are included.

This industry comprises establishments of the federal government primarily engaged in providing the incarceration and rehabilitation services of prisons and other detention establishments.

This industry comprises establishments of the federal government primarily engaged in maintaining law and order by means of operating police forces and services.

This industry comprises establishments of the federal government primarily engaged in the general protection of individuals, singly or in groups, against negligence, exploitation or abuse.

This industry comprises establishments of the federal government, not classified to any other industry, primarily engaged in dealing with major emergencies and catastrophes. Establishments primarily engaged in animal or pest control activities, or other federal protective services, are included.