Navigate / EASA

SERA.3110 Cruising levels

Regulation (EU) No 923/2012

The cruising levels at which a flight or a portion of a flight is to be conducted shall be in terms of:

(a)     flight levels, for flights at or above the lowest usable flight level or, where applicable, above the transition altitude;

(b)     altitudes, for flights below the lowest usable flight level or, where applicable, at or below the transition altitude.