Nationals of a Member State, stateless persons and refugees residing in a Member State are provided with the same benefits and be subject to the same obligations as nationals of that Member State.

People who provide training are equated to workers using the same social security rights (European Court of Justice, Case C3-90).

Profits and income received in one Member State are recognized in another Member State.

Facts and events occurring in one Member State are equivalent to those occurring in the competent State. The institution from one Member State which is in need of financial assistance or income shall take into account periods of insurance, employment, self-employment or residence implemented out under the legislation of any other Member State.