Tethered drones: 50m UK rules start 3 March 2026

The UK has tightened safety rules for tethered drones. A short amendment to the Air Navigation Order comes into force on 3 March 2026 and closes gaps left by last year’s update. If you fly for school, college, a club or small business, this is a practical guide to what changes and how to stay on the right side of the rules.

First, what counts as a tethered drone? The Civil Aviation Authority (CAA) describes a tethered unmanned aircraft as one that stays securely attached by a physical line to a person, the ground or a suitable object, often drawing power through that cable. Where the aircraft weighs 1 kg or less, it sits in a special bracket of the UK rules (Article 265E of the Air Navigation Order). (caa.co.uk)

What this Order changes is simple but important: it brings two “stand‑off” requirements-already familiar in the Open Category-into the tethered rulebook for craft of 250 g and above. From 3 March, pilots of tethered drones in that weight range must keep at least 50 metres from uninvolved people and at least 50 metres from any building. These come from points UAS.OPEN.040(A1) and UAS.OPEN.040(2A). (legislationtracker.co.uk)

Who’s affected? If your tethered aircraft has a maximum take‑off mass of 250 g or more (up to 1 kg), these 50 m buffers now apply to you. If your tethered aircraft is under 250 g, the new buffers don’t bite in the same way, but wider UK rules still apply-especially around airspace checks, visual line of sight and responsible flying. If in doubt, take the cautious option and build a 50 m buffer into your plans. (caa.co.uk)

A quick explainer on people and places: “uninvolved persons” are anyone not directly taking part in your flight or under your control for safety. The new building rule is separate: even if a building is empty, you should plan for 50 m horizontal distance unless you’ve got specific permission from the regulator to do otherwise. The CAA’s updated Drone Code guidance now signposts that pilots must keep at least 50 m from individual buildings. (caa.co.uk)

If your operation genuinely needs to be closer-for example, a university lab demonstration by a 500 g tethered quadcopter near a façade-there is a route. The CAA can give permission that allows non‑compliance with certain requirements when a safety case supports it. In practice, that often means applying for a Specific Category Operational Authorisation via PDRA01 or, for bespoke missions, a UK‑SORA application. (caa.co.uk)

Registration and IDs matter more in 2026. The law now requires most operators to be in the system at lower weights: you must register as a UAS operator when you fly in the Open Category with a camera‑equipped drone of 100 g or more, and the CAA only issues operator registration numbers to people aged 18 or over. These Article 14 changes sit behind the police powers cross‑reference that this Order also tidies, so expect checks on whether you should be registered. (regulatorylibrary.caa.co.uk)

Context you’ll see across the Drone Code this year: UK class marks (UK0–UK6) are live, and Remote ID is being phased in. From 1 January 2026, Direct Remote ID applies to several class‑marked drones, with broader coverage planned from 1 January 2028 for legacy and certain lower‑weight camera drones. Even if you fly tethered, make sure you know whether your aircraft needs Remote ID enabled. (caa.co.uk)

So, the near‑term timeline looks like this. The 50 m people‑and‑building buffers for tethered craft of 250 g or more apply from 3 March 2026. Earlier, on 1 January 2026, new registration thresholds and first‑phase Remote ID began. Looking ahead, more Remote ID obligations land on 1 January 2028 for legacy and some smaller camera drones. Keep these dates in your planning notes. (regulatorylibrary.caa.co.uk)

What it means for you if you fly with a school, college or youth group: weigh your aircraft, confirm whether it’s 250 g or more, and rehearse a 50 m cordon around the flight area and around nearby buildings. Identify any places on campus where those buffers are hard to achieve and log them as “no‑fly unless authorised”. If a teaching goal needs closer work, start a CAA application early and build your safety case with diagrams and supervision plans. (caa.co.uk)

For clubs and small creative teams, the same approach helps. Update your risk assessment templates to refer to the 50 m rules for people and buildings, refresh your site plans, and make sure every pilot has a valid Flyer ID and your organisation holds a current Operator ID where required by weight and camera use. If you’re upgrading kit, check class marks and Remote ID capability before you buy. (regulatorylibrary.caa.co.uk)

The bottom line: tethering reduces some risks, but it doesn’t remove your legal duties. From 3 March 2026, treat 50 metres as your default separation from both uninvolved people and buildings when your tethered aircraft is 250 g or more; if you need to fly closer, use the CAA’s permission routes. That’s how we keep lessons, shoots and community projects safe-and legal-while still getting the shot. (legislationtracker.co.uk)