Singapore legislation
Regulation 55C
of Air Navigation (91 — General Operating Rules) Regulations 2018
Regulation 55C
Declaration of prohibited, restricted, etc., areas
Subregulation 1
A part of Singapore airspace is —
a prohibited area if it is declared by the Director-General of Civil Aviation as an airspace in respect of which it is necessary to prohibit the flight of all aircraft over the area; or
a restricted area if it is declared by the Director-General of Civil Aviation as an airspace in respect of which it is necessary to restrict the flight of aircraft over the area to aircraft flown in accordance with specified conditions in the declaration.
Subregulation 2
A prohibited area or a restricted area may be declared by the Director-General of Civil Aviation under paragraph (1)(a) or (b) in respect of any Singapore airspace only if it is necessary —
due to military necessity;
in the interest of national security;
to protect the safety of aircraft in flight within the airspace;
to prevent or reduce potential danger to the general public; or
to protect a structure or site (manmade or natural) that is of national importance or significance which if damaged would pose a risk to public safety or security.
Subregulation 3
In addition, a prohibited area or a restricted area may be declared by the Director-General of Civil Aviation under paragraph (1)(a) or (b) in respect of any Singapore airspace for a fixed period only if it is necessary —
due to the happening of an event or a series of events (whether naturally occurring or caused by human acts or omissions) that —
endangers or threatens to endanger the safety or health of people in Singapore, or causes or threatens to cause destruction or loss of or damage to property in Singapore; and
requires a significant coordinated response using the combined resources of the Government; or
due to exceptional circumstances posing a risk to public safety that are existing and that warrant the declaration.
Subregulation 4
A flying training area is any part of Singapore airspace declared under this regulation by the Director-General of Civil Aviation as a flying training area because there exists within or over that part of Singapore airspace any flying training activity that is a potential danger to aircraft flying within or over that airspace.
Subregulation 5
A danger area is any part of the airspace within which the Authority may discharge its function under section 7(1)(f) of the Civil Aviation Authority of Singapore Act 2009, that is declared under this regulation by the Director-General of Civil Aviation as a danger area.
Subregulation 6
However, the Director-General of Civil Aviation must not declare under paragraph (5) a volume of airspace to be a danger area unless he or she is satisfied that —
there may exist within the airspace activities dangerous to the flight of any aircraft over or in the airspace at times; and
information as to the nature of the danger or when the danger is active ought to be published to enable the pilot-in-command of any aircraft to take precautions.
Subregulation 7
No declaration made under this regulation takes effect until it is published or caused to be published by the Authority in an AIP or a NOTAM in accordance with paragraphs (8), (9) and (10).
Subregulation 8
Any declaration of a prohibited area, a restricted area, a flying training area or a danger area made under this regulation —
must specify the area by reference to its boundaries;
must specify that the effect of the declaration is indefinite or for a fixed period of time, and if not indefinite, when or the circumstances in which the declaration ceases to have effect; and
may specify the boundaries of the area to extend to a volume of airspace and the boundaries of a volume of airspace above that area to which the declaration applies.
Subregulation 9
A declaration of a prohibited area, a restricted area, a flying training area or a danger area must be published —
in an AIP — if the declaration is to have effect for a period of 3 months or longer; or
in a NOTAM — in any other case.
Subregulation 10
Unless earlier revoked, a declaration made under this regulation ceases to have effect —
on the day, or on the day and time, specified in the declaration;
on the day, or on the day and time, of the occurrence of an event specified in the declaration; or
in the circumstances specified in the declaration.