Article 29 Mutual assistance - general obligations for the Member State of establishment
1. With respect to providers providing services in another Member State, the Member State of establishment shall supply information on providers established in its territory when requested to do so by another Member State and, in particular, confirmation that a provider is established in its territory and, to its knowledge, is not exercising his activities in an unlawful manner.
2. The Member State of establishment shall undertake the checks, inspections and investigations requested by another Member State and shall inform the latter of the results and, as the case may be, of the measures taken. In so doing, the competent authorities shall act to the extent permitted by the powers vested in them in their Member State. The competent authorities can decide on the most appropriate measures to be taken in each individual case in order to meet the request by another Member State.
3. Upon gaining actual knowledge of any conduct or specific acts by a provider established in its territory which provides services in other Member States, that, to its knowledge, could cause serious damage to the health or safety of persons or to the environment, the Member State of establishment shall inform all other Member States and the Commission within the shortest possible period of time.