Description

Fuel requirements for a given flight profile, be it Visual Flight Rules (VFR) or Instrument Flight Rules (IFR) flight, are published in the regulations produced by the National Aviation Authority (National Aviation Authority (NAA)) for the country of aircraft registration. The basis for these National regulations can be found within Annex 6 of the International Civil Aviation Organisation (ICAO) Standards and Recommended Practices (SARPS). The National Aviation Authority, often referred to as the "Regulator" or "Regualating Authority" has the inherent right to make adjustments to the ICAO SARPs comensurate with the needs and characteristics of their sovereign airspace.

ICAO SARPs

The following text has been extracted from ICAO Annex 6, chapter 4.