--- title: "ADR.OPS.B.045 Low-visibility procedures — Part-ADR.OPS · Avioverse" description: "The aerodrome operator shall ensure that the aerodrome is provided with appropriate aerodrome equipment and facilities, and that appropriate…" url: "https://avioverse.aero/regulations/easa/aerodromes/operations-requirements-part-adr-ops/subpart-b/adr-ops-b-045" --- # ADR.OPS.B.045 Low-visibility procedures ANNEX IV — Operations Requirements (Part-ADR.OPS) · Regulation (EU) No 139/2014 · EAR revision 13 Mar 2026 IR Implementing rule ## ADR.OPS.B.045 Low-visibility procedures (a) The [aerodrome operator](https://avioverse.aero/glossary/easa/aerodrome-operator) shall ensure that the [aerodrome](https://avioverse.aero/glossary/easa/aerodrome) is provided with appropriate [aerodrome equipment](https://avioverse.aero/glossary/easa/aerodrome-equipment) and facilities, and that appropriate [low-visibility procedures](https://avioverse.aero/glossary/easa/low-visibility-procedures) are established and implemented where it is intended to be used for any of the following operations: (1) low-visibility take-offs; (2) approach and landing operations with visibility conditions less than 550 m RVR or DH less than 200 ft (60 m); (3) operations with operational credits where the actual RVR is less than 550 m. The low-visibility procedures shall coordinate the [movement](https://avioverse.aero/glossary/easa/movement) of [aircraft](https://avioverse.aero/glossary/easa/aircraft) and vehicles and shall restrict or prohibit activities on the [movement area](https://avioverse.aero/glossary/easa/movement-area). (b) The aerodrome operator shall establish and implement the low-visibility procedures in cooperation with the [air traffic services](https://avioverse.aero/glossary/easa/air-traffic-services) provider. The low-visibility procedures shall include criteria for their preparation, initiation and termination. The criteria shall be based on RVR and cloud ceiling values. (c) The aerodrome operator shall inform the aeronautical information services provider and air traffic services provider, as appropriate, of any change on the status of the aerodrome equipment and facilities that have an impact on low-visibility operations. (d) The aerodrome operator shall provide information on low-visibility procedures to the aeronautical information services provider, for publication in the AIP. (e) Low-visibility procedures, and any changes thereto, shall require prior approval by the [competent authority](https://avioverse.aero/glossary/easa/competent-authority). IR · ADR.OPS.B.045 — Regulation (EU) No 139/2014 · Commission Delegated Regulation (EU) 2022/208 · Aerodromes Easy Access Rules · EAR revision 13 Mar 2026 AMC Acceptable means of compliance ## AMC1 ADR.OPS.B.045(a)(1) Low-visibility procedures [LOW-VISIBILITY TAKE-OFF (LVTO)](https://avioverse.aero/glossary/easa/low-visibility-take-off) WITH AN RVR LESS THAN 125 M In addition to the [low-visibility procedures](https://avioverse.aero/glossary/easa/low-visibility-procedures) which are required for LVTOs, the following should also apply to LVTOs with an RVR less than 125 m: (1) if an ILS signal is used for lateral guidance, the ILS localiser signal meets the requirements for category III operations including the availability of a standby transmitter; and (2) if an ILS signal is used, the low-visibility procedures should include protection of the ILS-[sensitive area](https://avioverse.aero/glossary/easa/sensitive-area). AMC · AMC1 ADR.OPS.B.045(a)(1) — Regulation (EU) No 139/2014 · ED Decision 2022/013/R · Aerodromes Easy Access Rules · EAR revision 13 Mar 2026 GM Guidance material ## GM1 ADR.OPS.B.045(a)(1) Low-visibility procedures [RUNWAY](https://avioverse.aero/glossary/easa/runway) CENTRE LINE LIGHTS The specifications for the required runway centre line lights are contained in CS ADR-DSN.M.690. GM · GM1 ADR.OPS.B.045(a)(1) — Regulation (EU) No 139/2014 · ED Decision 2022/013/R · Aerodromes Easy Access Rules · EAR revision 13 Mar 2026 AMC Acceptable means of compliance ## AMC1 ADR.OPS.B.045(a)(2) Low-visibility procedures SUITABILITY OF RUNWAYS — APPROACH AND LANDING OPERATIONS (a) CAT II instrument approach operations may be conducted on a precision approach category II or III [runway](https://avioverse.aero/glossary/easa/runway), using a CAT II instrument approach procedure. (b) CAT III instrument approach operations may be conducted on a precision approach category III runway, using a CAT III instrument approach procedure. (c) SA CAT I approach operations may be conducted in accordance with the following: (1) the runway is a precision approach category I runway and an [obstacle](https://avioverse.aero/glossary/easa/obstacle) free zone (OFZ) is established; (2) a CAT I instrument approach procedure that includes an OCH based on a radio altimeter is used; (3) where an ILS/MLS is used, it is not promulgated with any restrictions affecting its usability and is not offset from the extended runway centre line; (4) where a GBAS landing system (GLS) is used, it is not promulgated with any restrictions affecting its usability and should not be offset from the extended centre line; (5) the glide path angle is 3.0o; (6) the pre-[threshold](https://avioverse.aero/glossary/easa/threshold) terrain is surveyed and either a precision approach terrain chart (ICAO Annex 4, Chapter 6) is published in the AIP or the required information is included in the [aerodrome](https://avioverse.aero/glossary/easa/aerodrome) terrain and obstacle chart – ICAO (Electronic) (ICAO Annex 4, Chapter 5). (d) SA CAT II approach operations may only be conducted in accordance with the following: (1) the runway is a precision approach category I runway and an OFZ is established, and for operations with an RVR of less than 400 m, runway centre line lights are installed; (2) a CAT II instrument approach procedure is used; (3) where an ILS/MLS is used, it is not offset from the extended runway centre line and no restrictions affecting its usability are published in the AIP; (4) where a GLS is used, it is not offset from the extended runway centre line and no restrictions affecting its usability are published in the AIP; (4) where an ILS is used, it is certified to class II/D/2; (5) the pre-threshold terrain is surveyed and either a precision approach terrain chart (ICAO Annex 4, Chapter 6) has been published or the required information is included in the aerodrome terrain and obstacle chart – ICAO (Electronic) (ICAO Annex 4, Chapter 5). (e) The switch-over times of the different lighting elements on runways supporting SA CAT I/II approach operations should be as follows: | ELEMENT | SWITCH-OVER TIME | | ----------------------------------------------------------- | ---------------- | | Approach lighting system | 15 sec | | Runway edge light | 1 sec | | Visual approach slope indicators | 15 sec | | Runway threshold light | 1 sec | | Runway end light | 1 sec | | [Stopway](https://avioverse.aero/glossary/easa/stopway) end | 1 sec | | Stopway edge | 15 sec | | Obstacle light | 15 sec | (f) The switch-over time for runway edge lights may be increased to 15 sec if runway centre line lights are provided. In this case, the switch-over time for runway centre line lights should be 1 sec. AMC · AMC1 ADR.OPS.B.045(a)(2) — Regulation (EU) No 139/2014 · ED Decision 2022/013/R · Aerodromes Easy Access Rules · EAR revision 13 Mar 2026 AMC Acceptable means of compliance ## AMC1 ADR.OPS.B.045(a)(3) Low-visibility procedures SUITABILITY OF RUNWAYS FOR EFVS APPROACH AND LANDING OPERATIONS (a) An EFVS-A operation may be conducted on a [runway](https://avioverse.aero/glossary/easa/runway) if: (1) it is served by a straight-in instrument approach procedure in accordance with Part-FPD of Regulation (EU) 2017/373; (2) an OFZ is established or a VSS is not penetrated by obstacles, and an instrument departure procedure is established; (3) the [touchdown zone](https://avioverse.aero/glossary/easa/touchdown-zone) (TDZ) RVR is available; (4) [low-visibility procedures](https://avioverse.aero/glossary/easa/low-visibility-procedures) are in effect; (5) the switch-over time for runway edge, [threshold](https://avioverse.aero/glossary/easa/threshold) and end lights meets the specifications in CS ADR-DSN.S.880 for CAT II/III runways. (b) An EFVS-L operation may be conducted on a runway when, in addition to point (a): (1) an [aerodrome](https://avioverse.aero/glossary/easa/aerodrome) [obstacle](https://avioverse.aero/glossary/easa/obstacle) chart – ICAO Type A is published in the AIP; and (2) a precision approach terrain chart – ICAO is published in the AIP. AMC · AMC1 ADR.OPS.B.045(a)(3) — Regulation (EU) No 139/2014 · ED Decision 2022/013/R · Aerodromes Easy Access Rules · EAR revision 13 Mar 2026 AMC Acceptable means of compliance ## AMC1 ADR.OPS.B.045(b) Low-visibility procedures GENERAL (a) When [low-visibility procedures](https://avioverse.aero/glossary/easa/low-visibility-procedures) (LVPs) are in effect: (1) persons and vehicles operating on the [movement area](https://avioverse.aero/glossary/easa/movement-area) should be restricted to the essential minimum; (2) the critical and sensitive areas of ILS/MLS/GLS should be safeguarded. (b) The [aerodrome operator](https://avioverse.aero/glossary/easa/aerodrome-operator) should, in coordination with [air traffic services](https://avioverse.aero/glossary/easa/air-traffic-services), establish low-visibility taxi routes. AMC · AMC1 ADR.OPS.B.045(b) — Regulation (EU) No 139/2014 · ED Decision 2022/013/R · Aerodromes Easy Access Rules · EAR revision 13 Mar 2026 AMC Acceptable means of compliance ## AMC2 ADR.OPS.B.045(b) Low-visibility procedures CRITERIA FOR THE PREPARATION OF LVPs When establishing the RVR and cloud ceiling values below which LVPs should be prepared, the [aerodrome operator](https://avioverse.aero/glossary/easa/aerodrome-operator) should consider: (a) the [aerodrome](https://avioverse.aero/glossary/easa/aerodrome) layout and its complexity; (b) the location of the control tower; (c) the facilities and equipment available; and (d) the density of traffic. AMC · AMC2 ADR.OPS.B.045(b) — Regulation (EU) No 139/2014 · ED Decision 2022/013/R · Aerodromes Easy Access Rules · EAR revision 13 Mar 2026 AMC Acceptable means of compliance ## AMC1 ADR.OPS.B.045(c) Low-visibility procedures EQUIPMENT FAILURES TO BE REPORTED AND EFFECTS ON FLIGHT OPERATIONS The following equipment failures should be reported if the system is degraded or unserviceable or if back-up procedures cannot provide the same level of service: | EQUIPMENT FAILURE TO BE REPORTED – LOW-VISIBILITY DEPARTURE OPERATIONS | | | | ---------------------------------------------------------------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | SYSTEM CONSIDERED | FAILURE TO BE REPORTED | EFFECT ON FLIGHT OPERATIONS | | ILS (Where used for guided take-off) | ILS localiser downgraded to CAT II ILS localiser downgraded to CAT I ILS out of service | No take-off guidance. Guided take-off not allowed No take-off guidance. Guided take-off not allowed No take-off guidance. Guided take-off not allowed | | MLS (Where used for guided take-off) | MLS downgraded to CAT II MLS downgraded to CAT I MLS out of service | No take-off guidance. Guided take-off not allowed No take-off guidance. Guided take-off not allowed No take-off guidance. Guided take-off not allowed | | GBAS (Where used for guided take-off) | GBAS downgraded to CAT II GBAS downgraded to CAT I GBAS out of service | No take-off guidance. Guided take-off not allowed No take-off guidance. Guided take-off not allowed No take-off guidance. Guided take-off not allowed | | RVR | Touchdown RVR system unserviceable Other RVR systems unserviceable | Restrictions depending on flight operations rules Restrictions depending on flight operations rules | | LIGHTING SYSTEMS | [Runway](https://avioverse.aero/glossary/easa/runway) lighting unserviceable Runway centre line lighting unserviceable Runway edge lighting unserviceable [Taxiway](https://avioverse.aero/glossary/easa/taxiway) lighting system unserviceable | Restrictions depending on flight operations rules Restrictions depending on flight operations rules Restrictions depending on flight operations rules Restrictions depending on flight operations rules | | ANCILLARY | Stop bars unserviceable Ceilometer unserviceable Anemometer unserviceable | No effect if runway protection is ensured by other means No effect No effect if other sources available; otherwise restrictions depending on flight operations rules | | EQUIPMENT FAILURE TO BE REPORTED – APPROACH AND LANDING OPERATIONS | | | | ------------------------------------------------------------------ | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | SYSTEM CONSIDERED | FAILURE TO BE REPORTED | EXPECTED EFFECT ON FLIGHT OPERATIONS | | ILS | ILS downgraded to CAT II ILS downgraded to CAT I ILS out of service Outer [marker](https://avioverse.aero/glossary/easa/marker) unserviceable Glide path out of service | Flight operations limited to CAT II Flight operations limited to CAT I Restricted to non-precision approach (or other precision approach aid if available) No limitation if replaced by published equivalent position; otherwise, restricted to non-precision approach Restricted to non-precision approach (e.g. localiser only) | | MLS | MLS downgraded to CAT II MLS downgraded to CAT I MLS out of service | Flight operations limited to CAT II Flight operations limited to CAT I Restricted to non-precision approach (or other precision approach aid if available) | | GBAS | GBAS downgraded to CAT II GBAS downgraded to CAT I GBAS out of service | Flight operations limited to CAT II Flight operations limited to CAT I Restricted to non-precision approach (or other precision approach aid if available) | | DME | DME (as alternative to marker beacons) unserviceable | No limitation if replaced by published equivalent position; otherwise restricted to non-precision approach | | RVR | Touchdown RVR system unserviceable Other RVR systems unserviceable | Restriction depending on flight operations rules Restriction depending on flight operations rules | | LIGHTING SYSTEMS | Approach lighting unserviceable Runway lighting unserviceable Runway centre line lighting unserviceable Runway edge lighting unserviceable TDZ lighting unserviceable Taxiway lighting system unserviceable | Restriction depending on flight operations rules Restriction depending on flight operations rules Restriction depending on flight operations rules Restriction depending on flight operations rules Restriction depending on flight operations rules Restriction depending on flight operations rules | | ANCILLARY | Stop bars unserviceable Ceilometer unserviceable Anemometer unserviceable | No effect if runway protection is ensured by other means No effect No effect if other sources available; otherwise, restriction depending on flight operations rules | AMC · AMC1 ADR.OPS.B.045(c) — Regulation (EU) No 139/2014 · ED Decision 2023/003/R · Aerodromes Easy Access Rules · EAR revision 13 Mar 2026 [All rules in SUBPART B — AERODROME OPERATIONAL SERVICES, EQUIPMENT AND INSTALLATIONS (ADR.OPS.B)](https://avioverse.aero/regulations/easa/aerodromes/operations-requirements-part-adr-ops/subpart-b) Consolidated from the EASA Easy Access Rules (revision 13 Mar 2026, extracted 13 Oct 2026) for convenience. Not the official publication — verify against the Official Journal of the European Union and the EASA publications before operational use.