Law and legislation Double taxation 36 Income tax 34 Investments, American 22 Economic assistance, American 18 Investments, Foreign 18 Foreign economic relations 16 more ... Foreign relations 15 Tax evasion 12 Prevention 10 International cooperation 9 International economic relations 9 Arms transfers 7 Double imposition 7 Finance 7 Legal status, laws, etc 7 Export controls 6 Conservation 5 Fishery management, International 5 Marine pollution 5 Appropriations and expenditures 4 Foreign trade promotion 4 Nuclear nonproliferation 4 Economic development projects 3 Fishery law and legislation 3 Fraude fiscale 3 Government policy 3 National security 3 Nuclear energy 3 Radio 3 less ...