Singapore legislation
Regulation 70
of Air Navigation (125 — Complex General Aviation) Regulations 2018
Regulation 70
Communication equipment
Subregulation 1
A CGAC holder must ensure that every aircraft it operates for complex general aviation operations is equipped with —
radio communication equipment that is capable of providing continuous two‑way communication with an appropriate air traffic services unit or aeronautical telecommunications facility, and for receiving meteorological information, at any time during flight; and
a headset with a boom or throat microphone.
Subregulation 2
The radio communication equipment required under paragraph (1) must provide for communication on the emergency frequency 121.5 MHz.
Subregulation 3
A CGAC holder must not operate an aircraft in a defined portion or airspace or on a route where the appropriate air services authority has specified a required communication performance for performance‑based communication during a complex general aviation operation unless —
the aircraft is equipped to operate in accordance with the specified required communications performance; and
the CGAC holder has an approval granted by the Director‑General of Civil Aviation under the Air Navigation (98 — Special Operations) Regulations 2018 for that purpose.