EFZ (in Austria: Eingeschränktes Funkerzeugnis) and EZF (an older German variant: Erweitertes Sprechfunkzeugnis) are historical or transitional terms used to describe VFR-only radio certificates in German-speaking countries. Although still occasionally used informally or in older documents, these terms are being replaced by the standardized designations BFZ and AFZ.
| Certificate | Code | Scope | Language | Valid For |
|---|---|---|---|---|
| Restricted RT (Austria) | EFZ | VFR only | German | Austria only |
| Outdated term (Germany) | EZF | Previously: VFR/extended | German (+ limited English) | No longer issued |
| Standard RT (current) | BFZ / BZF II | VFR only | German | National use |
| Full RT | AFZ / AZF | VFR + IFR | German + English | International use |