The appropriate ATS authority
Help, please.
When I am flying VFR in Class G Airspace below 3000 feet in compliance with ICAO Annex 2, Chapter 3.9 (Table 3-1) and the flight visibility drops below 5 km, provided it is ‘prescribed by the appropriate ATS authority’, and I am flying at an appropriate speed I can continue down to a flight visibility of 1500 metres.
How do I know / where can I find out, who the ‘appropriate ATS authority’ is?