Night VFR
（重定向自NVFR）
Night VFR, or night visual flight rules (NVFR), are the rules under which a flight primarily by visual reference may be performed at night.
In many countries, VFR flight at night is not permitted, in which case night flying is by instrument flight rules (IFR) only which, in almost all countries, requires an instrument rating. Exceptions include Australia, New Zealand, Canada, Germany, Finland, France, Belgium, Luxembourg, Poland, South Africa, Sweden, Switzerland, the United Kingdom, and the United States.