Regulation 4 Enforcement and execution of regulations
Subject to the provisions of these regulations, it shall be the duty of the following authorities to enforce and execute these regulations;—
at a national airport, the Secretary of State, or if a local authority has undertaken duties at that aerodrome under section 18(2) of the Civil Aviation Act 1949 or section 15(2) of the Airports Authority Act 1975, that local authority;
at an aerodrome maintained by the council of a county, that council;
at an aerodrome maintained by the council of a district, that council, or, if so agreed, upon terms and conditions approved by the Secretary of State between that council and any other council in whose county or district the aerodrome is wholly situated or any port health authority in whose district the aerodrome is wholly or partly situated, that other council or the port health authority;
at any other aerodrome—
if it is wholly situated in a district or in a port health district, the council or port health authority of that district, or, if the Secretary of State so directs, the council of the county in which that district is situated;
if it extends into more than one district or into a port health district, and the Secretary of State so directs, the council of any county in which the aerodrome is wholly or partly situated, or, failing such direction, such one of the councils or the port health authority in whose district any part of the aerodrome is situated as those councils or the port health authority, as the case may be, may, upon terms and conditions approved by the Secretary of State agree, or, in the absence of agreement, such one of those councils or the port health authority as the Secretary of State may direct;
at any place other than an aerodrome—
if it is situated in a port health district, the port health authority of that district;
if it is situated elsewhere than in a port health district, the council of the district in which the place is situated.
The Secretary of State may attach such terms and conditions as he thinks fit to any direction given by him under this regulation.
The Secretary of State shall exercise his functions as a responsible authority through such officers as may be designated for the purpose by him or (except in relation to aerodromes owned or managed by the British Airports Authority) by the Secretary of State for Trade.
Every other responsible authority shall exercise its functions through the medical officer and such other officers as it may authorise in that behalf, and shall make such inquiries and take such other steps as may seem to it to be necessary for securing the proper exercise of those functions.