The European Surveillance Authority (ESA) eight Directorates/Services as of 9 September 1993. This organigramme changed over time.

Competition Directorate : Dealt with competition rules applicable to undertaking, prohibition of cartels, prohibition of abuse of dominant positions, controlled concentrations. It also implemented the rules on public undertakings relating to anti-trust.

State Aid and Monopolies Directorate: reviewed existing aid, examined new aid measures and monopolies. It also implemented rules on public undertakings relating to monopolies and state aid.

Goods Directorate: responsible for controlling technical barriers to trade including information, procedures, product safety etc. It also dealt with other trade matters including customs duties, charges, discretionary taxation, processed agriculture products, fish, energy, veterinary and phytosanitary matters and public procurement.

Capital and Financial Services Directorate: responsible for capital movements, establishment, financial services (banking, securities trading, insurance) and company law.

Specific EEA Affairs' Directorate: responsible for free movement of persons including recognition of diplomas, right of establishment social security; Environment, consumer protection, social policy, transport (inland, maritime, aviation) and communication.

Legal Service: represents the Authority in Court proceedings, plays formal part of infringement procedures, advises on legal questions and offer jurist legal services.

Administration: responsible for human resources, budget planning, finance control, computer planning an support, staff insurance, buildings, purchasing and Library.

Executive Secretariat: responsible for the administration of procedures for College meetings and decision, press/information, Registers and reports on complaints, own initiative cases, infringements, and mail registry.

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