" 'night' means the hours between the end of evening civil twilight and the beginning of morning civil twilight, or such other period between sunset and sunrise as may be specified by the appropriate authority. In or over the State 'night' shall be deemed to be, during the period beginning on the 1st day of April and ending on the 30th day of September, the time between half-an-hour after sunset and half-an-hour before sunrise and, during the remainder of the year, the time between sunset and sunrise;".

" 'controlled flight' means any flight which is provided with air traffic control service;".

"10. (2) Nothing shall be dropped from an aircraft flying within the State unless it is dropped in accordance with permission given by the Minister and subject to any conditions and limitations contained in such permission; provided that this paragraph shall not apply to the dropping of articles by or with the authority of the pilot in command of the aircraft in the following circumstances--

(a) the dropping of articles for the purpose of saving life;

(b) the jettisoning, in the case of emergency, of fuel or other articles in the aircraft;

(c) the dropping of ballast in the form of fine sand or water;

(d) the dropping of articles solely for the purpose of navigating the aircraft in accordance with ordinary practice or with the provisions of this Order;

(e) the dropping at an aerodrome in accordance with the prescribed conditions of ropes, banners or similar articles towed by aircraft".

"(2A). An aircraft shall not be used for the dropping of material for the purpose of sowing seed or of dusting or spraying the surface of the land or water or anything growing thereon except in accordance with--

(a) an express authorisation for that purpose included in the terms of the certificate of airworthiness or a validation of such certificate in force in respect of the aircraft;

(b) the conditions of the permission referred to in paragraph (2) of this Rule."

"(d) land and take-off into the wind insofar as is practicable and consistent with considerations of safety or runway configuration or in accordance with instructions or signals displayed by the appropriate air traffic control unit;"

"(1A). The cruising levels at which a flight or a portion of a flight is to be conducted shall be in terms of--

(a) flight levels, for en-route flights at or above the lowest usable flight level;

(b) altitudes for en-route flights below the lowest usable flight level and as applicable for arriving or departing flights below the transition altitude."

"(2) A flight plan shall be submitted prior to operating--

(a) within the State--

(i) all flights or portions thereof in controlled airspace and when required by the appropriate authority or by air traffic control services units in a designated airspace outside controlled airspace, or

(ii) IFR flights outside controlled airspace when required by the appropriate authority or by air traffic control services units, or

(iii) any flight leaving the State, and

(b) elsewhere in accordance with the requirements of the appropriate authority".

"(7) All changes to a flight plan submitted for an IFR flight or a controlled VFR flight, subject to the provisions of Rule 32 (3), and significant changes to a flight plan submitted for an uncontrolled VFR flight, shall be reported as soon as practicable to the appropriate air traffic services unit".

The substitution of "controlled flight" for "IFR flight" in paragraphs (1) and (2).

The substitution of the following for Rule 33:

"33. When a controlled flight has landed or is no longer subject to air traffic control service, the appropriate air traffic control unit shall be notified as soon as possible".

The substitution of the following for Rule 34:

"34. An aircraft flown as a controlled flight shall maintain a continuous listening watch on the appropriate radio frequency of, and establish two-way communication as necessary with, the appropriate air traffic control unit".

The substitution of the following for Rule 35;

"35. If a radio failure precludes compliance with Rule 34, the aircraft shall proceed according to the procedure notified by the appropriate authority".