transponder mandatory zone (TMZ)

EASA defines “transponder mandatory zone (TMZ)” in one regulation. The wording below is reproduced verbatim from the EASA Easy Access Rules, with a link to the paragraph it comes from.

‘transponder mandatory zone (TMZ)’ means an airspace of defined dimensions wherein the carriage and operation of pressure-altitude reporting transponders is mandatory;

Article 2 · Standardised European Rules of the Air (SERA) · Regulation (EU) No 923/2012 · Easy Access Rules, 26 Aug 2025 revision · Read Article 2

Defined in the same article

accuracy
advisory airspace
advisory route
aerial work
aerobatic flight
aerodrome
aerodrome control service
aerodrome control tower

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