BFZ / BZF

BFZ (in Austria: Beschränktes Funkerzeugnis) or BZF (in Germany: Beschränktes Sprechfunkzeugnis) refers to a restricted radiotelephony certificate. It qualifies private pilots to operate radio communications under specific conditions within national airspace.

BFZ and BZF are functionally equivalent but differ in naming conventions depending on the issuing authority or country.

The BFZ/BZF is primarily intended for:

• VFR (Visual Flight Rules) flights
• In German language only
• Within German-speaking countries, especially within Class G, E, and D airspace

It is most suitable for private pilots (PPL) who fly under VFR and do not require English-language communication or IFR procedures.

In Germany, there are two versions of the BZF:

BZF I includes all privileges of BZF II, plus English communication competence.

The BZF/BFZ exam usually includes:

• Theory section: Regulations, airspace structure, radio procedures
• Practical part: Simulated ATC communications using standard ICAO phraseology
• Language: In BZF I, candidates must demonstrate competence in both German and English RT

The exam is administered by national aviation authorities such as LBA (Germany) or Austro Control (Austria).

The certificate itself does not expire, but language proficiency may need to be renewed depending on ICAO language level (typically every 4–6 years for English).

The BFZ or BZF II is ideal for new VFR pilots operating locally in German-speaking areas. For cross-border or IFR operations, BZF I or AFZ is required.