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SECTION 3 General rules and collision avoidance

ANNEX: Rules of the Air · Standardised European Rules of the Air (SERA) · Regulation (EU) No 923/2012 · SERA.3101 – SERA.3401

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  1. SERA.3101 Negligent or reckless operation of aircraft

    An aircraft shall not be operated in a negligent or reckless manner so as to endanger life or property of others.

  2. SERA.3105 Minimum heights

    Except when necessary for take-off or landing, or except by permission from the competent authority, aircraft shall not be flown over the congested areas…

    GM1 SERA.3105 Minimum heights

    GM2 SERA.3105 Minimum heights

    GM3 SERA.3105 Minimum heights

  3. SERA.3110 Cruising levels

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

  4. SERA.3115 Dropping or spraying

    Dropping or spraying from an aircraft in flight shall only be conducted in accordance with:

  5. SERA.3120 Towing

    An aircraft or other object shall only be towed by an aircraft in accordance with:

  6. SERA.3125 Parachute descents

    Parachute descents, other than emergency descents, shall only be made in accordance with:

  7. SERA.3130 Aerobatic flight

    Aerobatic flights shall only be carried out in accordance with:

  8. SERA.3135 Formation flights

    Aircraft shall not be flown in formation except by pre-arrangement among the pilots-in-command of the aircraft taking part in the flight and, for…

  9. SERA.3140 Unmanned free balloons

    An unmanned free balloon shall be operated in such a manner as to minimise hazards to persons, property or other aircraft and in accordance with the…

  10. SERA.3145 Prohibited areas and restricted areas

    Aircraft shall not be flown in a prohibited area, or in a restricted area, the particulars of which have been duly published, except in accordance with…

  11. SERA.3201 General

    Nothing in this Regulation shall relieve the pilot-in-command of an aircraft from the responsibility of taking such action, including collision avoidance…

    GM1 SERA.3201 General

  12. SERA.3205 Proximity

    An aircraft shall not be operated in such proximity to other aircraft as to create a collision hazard.

  13. SERA.3210 Right-of-way

    The aircraft that has the right-of-way shall maintain its heading and speed.

    GM1 SERA.3210(d)(3) Right-of-way

    GM1 SERA.3210(d)(4)(ii) (B) Right-of-way

  14. SERA.3212 Uncertainty as to the position on the manoeuvring area at aerodromes where air traffic services are provided

    Except as provided for in point (b), a pilot in doubt as to the position of the aircraft with respect to the manoeuvring area shall immediately:

  15. SERA.3215 Lights to be displayed by aircraft

    Except as provided by (e), at night all aircraft in flight shall display:

    GM1 SERA.3215(a) ;(b) Lights to be displayed by aircraft

    AMC1 SERA.3215(a)(1) Lights to be displayed by aircraft

    GM1 SERA.3215(a)(1) Lights to be displayed by aircraft

  16. SERA.3220 Simulated instrument flights

    An aircraft shall not be flown under simulated instrument flight conditions unless:

    GM1 SERA.3220(b) Simulated instrument flights

  17. SERA.3225 Operation on and in the vicinity of an aerodrome

    An aircraft operated on or in the vicinity of an aerodrome shall:

  18. SERA.3230 Water operations

    When two aircraft or an aircraft and a vessel are approaching one another and there is a risk of collision, the aircraft shall proceed with careful…

    GM1 SERA.3230 Water operations

    GM1 SERA.3230(b) Water operations

  19. SERA.3301 General

    Upon observing or receiving any of the signals given in Appendix 1, aircraft shall take such action as may be required by the interpretation of the…

  20. SERA.3401 General

    Coordinated Universal Time (UTC) shall be used and shall be expressed in hours and minutes and, when required, seconds of the 24-hour day beginning at…

    GM1 SERA.3401(d) General

Consolidated from the EASA Easy Access Rules (revision 26 Aug 2025, extracted 17 Aug 2026) for convenience. Not the official publication — verify against the Official Journal of the European Union and the EASA publications before operational use.

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