1.

Transmission system operators shall be equipped with all human, technical, physical and financial resources necessary for fulfilling their obligations under this Directive and carrying out the activity of gas transmission, in particular: assets that are necessary for the activity of gas transmission, including the transmission system, shall be owned by the transmission system operator; personnel necessary for the activity of gas transmission, including the performance of all corporate tasks, shall be employed by the transmission system operator; leasing of personnel and rendering of services, to and from any other parts of the vertically integrated undertaking shall be prohibited. A transmission system operator may, however, render services to the vertically integrated undertaking as long as: the provision of those services does not discriminate between system users, is available to all system users on the same terms and conditions and does not restrict, distort or prevent competition in production or supply; and the terms and conditions of the provision of those services are approved by the regulatory authority; without prejudice to the decisions of the Supervisory Body under Article 20, appropriate financial resources for future investment projects and/or for the replacement of existing assets shall be made available to the transmission system operator in due time by the vertically integrated undertaking following an appropriate request from the transmission system operator.

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Source: EUR-Lex (Cellar) · retrieved 2026-10-28 · Text as adopted (Official Journal); later amendments are not incorporated in this text.