21.Section 3 makes it an offence for a person to provide air traffic services in respect of a managed area unless he is authorised to do so by a licence or an exemption. “Air traffic services” means:
	providing instructions, information or advice with a view to preventing aircraft colliding with other aircraft or with other obstructions;
	providing instructions, information or advice with a view to securing safe and efficient flying;
	managing the flow of air traffic with a view to ensuring the most efficient use of airspace;
	providing facilities for communicating with aircraft and for the navigation and surveillance of aircraft;
	and notifying organisations of aircraft needing search and rescue facilities and assisting organisations to provide such facilities.
22.“Managed areas” are the United Kingdom and any area which is outside the United Kingdom but in respect of which the United Kingdom has undertaken under international arrangements to provide air traffic services.
23.Air traffic services provided by or on behalf of the armed forces are not to require an exemption or a licence. Nor are air traffic services provided by the CAA in pursuance of directions under section 66(1).
Commentary on Sections Part I: Air Traffic Chapter I: Air Traffic Services Section 3: Restrictions on providing services