1151. Application of emissions certification requirements, and exclusions and exemptions.

The emissions certification requirements1 apply in relation to United Kingdom-registered aircraft2 wherever they may be and to other aircraft whenever they are in the United Kingdom3. However, the Civil Aviation Authority ('CAA')4 may, after consultation with the Secretary of State5, exempt from any of the emissions certification requirements any aircraft or engine or persons or classes of aircraft or engine or persons, either absolutely or subject to such conditions as it thinks fit6. In addition, an aircraft without a certificate of airworthiness7 flying in accordance with the 'A' conditions or 'B' conditions set out in the Air Navigation Order