Singapore legislation
Regulation 55A
of Air Navigation (91 — General Operating Rules) Regulations 2018
Regulation 55A
Designation of airspace and controlled aerodromes, etc.
Subregulation 1
The following designations made by the Authority in the discharge of its function under section 7(1)(f) of the Civil Aviation Authority of Singapore Act 2009, do not take effect until published or caused to be published by the Authority in an AIP or a NOTAM:
a designation that an aerodrome is a controlled aerodrome;
a designation that a volume of airspace extending upwards from ground or water to a specified altitude is a control zone;
a designation that a volume of airspace extending upwards from a specified altitude is a control area;
a designation that a volume of airspace is airspace classified in accordance with Annex 11 to the Chicago Convention.
Subregulation 2
If a designation under paragraph (1)(d) provides that a volume of airspace of a specified class ceases to be airspace of that class and becomes airspace of another specified class, the designation must specify —
one or more of the following:
the dates or days on which the airspace is designated to be of a particular class;
the times when the airspace is designated to be of a particular class;
the class of the airspace on all other dates or days, and times, other than those specified under sub-paragraph (i) or (ii); or
the conditions under which the volume of airspace of the specified class ceases to be airspace of that class and becomes airspace of another specified class.
Subregulation 3
Unless earlier revoked, a designation made under this regulation ceases to have effect —
on the day, or on the day and time, specified in the designation;
on the day, or on the day and time, of the occurrence of an event specified in the designation; or
in the circumstances specified in the designation.
Subregulation 4
To avoid doubt, nothing in this Division prevents the Authority from publishing or causing to be published in an AIP or a NOTAM —
any aeronautical information required by the Act or the Chicago Convention to be so included; and
any other matter that the Authority is satisfied is relevant to air navigation.