Article 45 4.

The technical service, including its top-level management and the personnel responsible for carrying out the categories of activities for which the technical service is designated in accordance with Article 47(1), shall not be the designer, manufacturer, supplier, installer or maintainer of the engines which it assesses, and shall not represent parties engaged in those activities. This restriction shall not preclude the use of assessed engines referred to in paragraph 3 of this Article that are necessary for the operation of the technical service, or the use of such engines for personal purposes.