The difficulties encountered by the Member Countries in the ratification of the Maastricht Treaty emphasize the limits of Euro-pean integration and the tension towards the localization of dis¬ciplines, encouraged by the ambiguous interpretation of the prin¬cipie of subsidiarity. In the field of Social Policy, the conflicting tendencies towards convergence or divergence of the systems are also based on a limíted conception of the EEC labour law, de-riving from the reduced authority of the Community on this sub-ject. A fundamental contribution to the evolution of the Commu-nity labour law today derives from the Protocol and Agreement on Social Policy, accompanying the Maastricht Treaty, which may fa-cilitate a revision of the system of sources of legislation and make the relationship between EEC and national legislations more flex-ible and dynamic