How to Register a DJI Agras T40 in the UK

Why the Agras T40 Faces the Highest Regulatory Burden

UK drone regulations divide operations into three categories: Open (lowest risk), Specific (medium risk), and Certified (highest risk). The Open category has a maximum take-off mass limit of 25 kilograms. The DJI Agras T40, with its 40-litre spray tank fully loaded, weighs roughly 52 kilograms — more than double the Open category ceiling.

This places the Agras T40 firmly in the territory where Certified Category requirements apply. The Certified Category is designed for operations that present a risk comparable to manned aviation. It demands the most rigorous approvals, documentation, and oversight the CAA offers.

Registration — The Starting Point

While registration is the simplest step, it is still mandatory:

1. Flyer ID: Pass the free CAA online theory test. Valid for five years.
2. Operator ID: Register as an operator (£10.33/year) and display the ID on the aircraft.

However, registration is merely the baseline. For the Agras T40, the real regulatory work begins after registration.

Certified Category Approval Process

Operating a drone above 25kg in the UK requires either a CAA Type Certificate for the aircraft or a specific operational exemption. The process typically involves:

• Type Certificate or Design Verification: The aircraft must meet airworthiness standards comparable to manned aviation. As of 2026, few unmanned aircraft have received a UK Type Certificate. Most Agras T40 operators work under exemptions or specific permissions.
• Operational Authorisation: Submit a comprehensive operations manual to the CAA, including detailed risk assessments, emergency procedures, maintenance schedules, and crew competency records.
• Pilot competency: Operators typically need to demonstrate training far beyond the standard Flyer ID. The CAA may require evidence of manufacturer training, flight hours, and specific competency assessments for agricultural spraying operations.
• Maintenance programme: A documented maintenance regime is essential. Given the Agras T40's complexity — including spray systems, pumps, and high-capacity batteries — maintenance records must be thorough and up to date.

Expect the approval process to take several months. Engage with the CAA early and consider working with a drone industry consultant who has experience with heavy-lift agricultural operations.

Agricultural Spraying Regulations

Beyond aviation law, agricultural drone spraying in the UK intersects with environmental and chemical safety regulations:

• Pesticide application: Anyone applying pesticides from a drone must comply with the Plant Protection Products Regulations. This includes holding appropriate certifications for pesticide handling.
• Environmental permits: Spraying near watercourses, Sites of Special Scientific Interest (SSSIs), or other environmentally sensitive areas may require additional permits from the Environment Agency or Natural England.
• Landowner permission: You must have explicit permission from the landowner (or tenant farmer) before conducting any spraying operations on their land.
• Drift management: You are responsible for ensuring spray does not drift onto neighbouring properties, public rights of way, or watercourses. Buffer zones are typically required.

Insurance and Liability

Third-party liability insurance is a legal requirement for commercial drone operations in the UK, and virtually every Agras T40 flight is commercial. Given the aircraft's weight and the chemicals it carries, insurance premiums for agricultural drone operations are substantially higher than for standard drone work.

Your insurance must cover not only aircraft-related incidents but also potential environmental contamination and chemical exposure claims. Speak with a specialist aviation insurance broker who understands agricultural drone operations.

Key Points for Agras T40 Operators

• At ~52kg (loaded), the Agras T40 exceeds the 25kg Open Category limit. Certified Category approval or CAA exemption is mandatory.
• Flyer ID + Operator ID are required but are only the starting point — not sufficient on their own.
• The approval process involves airworthiness documentation, operations manuals, risk assessments, and demonstrated pilot competency.
• Agricultural spraying adds environmental, chemical safety, and landowner permission requirements on top of aviation law.
• Specialist insurance covering both aviation liability and environmental contamination is mandatory.
• This is exclusively a professional agricultural tool. It is not suitable for recreational use under any UK regulatory framework.