Treaties — Effect in municipal law — EEC Treaty, 1957 — Legislation enacted by EEC institutions — Status under municipal law — Regulations — Direct applicability — Conditions — EEC Council Regulation No 1784/84 on the European Regional Development Fund

Treaties — Effect in municipal law — Act concerning Conditions of Accession of Spain and Portugal to the European Communities 1985 — Direct applicability of acts of Community institutions — Whether extending for new Member States to Community regulations enacted prior to their accession

Relationship of international law and municipal law — Treaties — Incorporation of provisions into municipal legal order — Portuguese Constitution, Article 8(3) — Direct effect of acts of international institutions of which Portugal is a member

Treaties — Conclusion and operation — Constitutional limitations — Acts of institutions established by EEC Treaty — Method of implementation under municipal law — Executive order — Constitutionality — Whether reference to Community law providing sufficient basis for exercise of executive regulatory powers — Portuguese Constitution, Article 115

International organizations — EEC — Legal status — Powers — Legislation — Regulations enacted by Council — Whether directly applicable in municipal legal order of Member States — EEC Treaty, 1957 — Article 189 — The law of Portugal