Subject
Cultural property Protection Law and legislation
16
Aeronautics, Commercial Law and legislation
11
Communication of technical information
11
Customs administration Law and legislation
9
Historic preservation International cooperation
9
United States Military relations
8
Aeronautics, Commercial International cooperation
6
Customs administration International cooperation
6
Research Law and legislation
6
Nuclear facilities Safety measures
5
Nuclear facilities Safety measures International cooperation
5
Conservation of natural resources Law and legislation
4
Earth sciences Research
4
United States Armed Forces Civilian employees Legal status, laws, etc
4
Asylum, Right of
3
Cultural property Protection (International law)
3
El Salvador Military relations
3
Emigration and immigration law
3
Extradition
3
Tax administration and procedure International cooperation
3
United States Commerce
3
Agricultural laborers, Foreign Legal status, laws, etc
2
Astronautics International cooperation
2
Criminal justice, Administration of
2
Diplomatic and consular service, American
2
Drug control
2
Drug control International cooperation
2
Ecuador Commerce
2
Environmental management Law and legislation
2
Environmental protection International cooperation
2
Extradition International cooperation
2
Foreign bank accounts Law and legislation
2
Foreign trade regulation
2
Foreign workers Legal status, laws, etc
2
Honduras Military relations
2
Military assistance, American Law and legislation
2
Outer space Exploration Government policy
2
Outer space Research International cooperation
2
Refugees Government policy
2
Rules and practice
2
Search and rescue operations International cooperation
2
Search and rescue operations Law and legislation
2
Sky marshals
2
Telecommunication Law and legislation
2
Territorial waters
2
United States Armed Forces Legal status, laws, etc
2
Visas
2
Water transfer Law and legislation
2
Aeronautics, Commercial Security measures
1
Air bases, American
1
more ...