If you operate commercially under UK Civil Aviation Authority (CAA) authorisation, 2026 brings the most significant overhaul to the domestic drone regulatory framework since the UK diverged from EU rules post-Brexit. Some changes came into force on 1 January 2026. Others were already in motion before that date. A few are still transitioning. Here is a clear account of what has changed, what is still changing, and what it means in practice for professional operators.
Registration Threshold: Down from 250g to 100g
From 1 January 2026, the weight at which a drone triggers mandatory registration with the CAA dropped from 250g to 100g. If you fly any aircraft over 100g, you must hold both a valid Operator ID and a Flyer ID. This is not new territory for most commercial operators — who have been registered for years — but it has immediate relevance for any operator running lightweight inspection platforms or sub-250g survey drones. Operator ID renewal costs approximately £10.50 per year. Flyer ID is obtained by passing the free CAA theory test.
The UK Class Marking System: UK0 to UK6
The most structurally significant change is the introduction of the UK class marking system. From 1 January 2026, any new drone model placed on the UK market must carry a class mark — UK0 through UK6 — confirming it meets defined technical standards covering weight, Remote ID integration, geo-awareness, and flight mode capabilities.
This matters because the operational rules you fly under in the Open Category are now tied to the class mark of your aircraft, not its weight alone. A UK2-class drone can fly as close as 5 metres to uninvolved persons when operating in low-speed mode with an A2 Certificate of Competency. An unclassed legacy drone — including most current-generation DJI platforms — must maintain 50 metres horizontal separation under the same A2 rules. Between 1 January 2026 and 31 December 2027, a UK1-class drone may still be flown in the Over People subcategory; after that transitional window closes, the class mark requirements become absolute.
For commercial survey work involving building facades, infrastructure corridors, or confined access zones, the distinction between classed and unclassed aircraft is operationally critical. If your fleet consists of legacy platforms purchased before the class marking era, your operational envelope under Open Category rules is now materially narrower than that of an equivalent operator running class-marked aircraft.
Remote ID: Mandatory for New Aircraft, 2028 Deadline for Legacy Fleets
Remote ID — described by the CAA as a digital number plate for drones — is mandatory on all new drones sold from 1 January 2026. The system broadcasts the aircraft’s identity, location, altitude, and operator information in real time during flight, allowing authorities and other airspace users to identify and locate any drone in the air.
Legacy drones without built-in Remote ID have until 1 January 2028 to comply, either through manufacturer firmware updates or by fitting an external broadcast module. After that date, any drone over 100g with a camera must broadcast Remote ID to fly legally. For operators running older platforms, this is a firm deadline: it requires either a hardware retrofit solution or fleet replacement, and neither option should be left until late 2027.
OSC Is Gone: SORA Is Now the Route for Complex Operations
For operators conducting higher-risk, beyond-visual-line-of-sight (BVLOS), or otherwise complex work in the Specific Category, the most consequential change came in April 2025: the Operational Safety Case (OSC) methodology was replaced by UK SORA — the Specific Operations Risk Assessment. The CAA stopped accepting OSC applications from that point. Any new or renewed Operational Authorisation for complex operations must now be built on the SORA framework.
SORA is a structured risk framework that assigns a Safety Assurance and Integrity Level (SAIL) to a proposed operation based on the Ground Risk Class and Air Risk Class of the flight profile. The SAIL level determines the robustness of mitigations required. Application costs reflect the framework’s complexity: a SAIL I authorisation, representing the lowest risk band, carries an initial application fee of £2,185 with the same fee applying at renewal. Higher SAIL levels attract proportionally greater fees and more extensive supporting documentation requirements.
If your operational authorisations were built on an OSC framework, they remain valid until their expiry date — but any renewal or new application must be submitted under SORA. Operators who have not already engaged with the SORA process are advised to do so well in advance of any renewal deadline, as the preparation of a compliant SORA package is considerably more involved than an OSC submission.
PDRA Changes: Higher Fees and PDRA-02 Suspended
Pre-Defined Risk Assessment routes remain available for lower-complexity Specific Category operations, but with two significant developments.
The annual renewal fee for PDRA-01, which covers standard visual-line-of-sight commercial operations beyond the Open Category, has increased from £234 to £500. If your organisation holds a PDRA-01 Operational Authorisation, budget accordingly at your next renewal.
PDRA-02 is currently suspended. The CAA has confirmed it is conducting a full review of PDRA-02’s risk model and is not accepting new applications or renewals while the review is in progress. Operators who relied on PDRA-02 authorisation for proximity work will need to find an alternative operational route — most likely SORA — until the CAA publishes the revised standard and reopens the application process.
Commercial Insurance: EC 785/2004 Remains Non-Negotiable
Commercial drone operators are required to hold insurance compliant with EC Regulation 785/2004. This requirement has not changed, but it is worth restating clearly in a year when much else has. Recreational flyers have no legal insurance mandate. Commercial operators — anyone conducting paid survey, inspection, monitoring, or data capture work — do. No class mark, PDRA, or SORA authorisation replaces this requirement, and operating commercially without compliant insurance exposes both operator and client to significant liability.
What This Means in Practice
For established commercial operators with modern fleets and maintained authorisations, the 2026 framework is an evolution rather than a revolution. The class marking system, Remote ID mandate, and SORA transition all push in the same direction: greater accountability, traceable operations, and structured risk management proportionate to the complexity of the work.
The practical pressure points are fleet currency and authorisation type. Legacy aircraft without class marks are operationally constrained under Open Category rules and face a hard Remote ID deadline in 2028. The PDRA-02 suspension creates a gap in the authorisation landscape for close-proximity work that SORA fills, but at considerably greater cost and administrative weight. And for any operator whose complex authorisations are approaching renewal, engaging early with an approved National Qualified Entity (NQE) for SORA support is now a business-critical step rather than an optional one.
The regulatory direction is clear. The CAA’s 2026 framework rewards operators who invest in capable, compliant aircraft, maintain current authorisations, and build the operational procedures and documentation to match the risk frameworks they work within.