The Department for Environment, Food & Rural Affairs (Defra) has launched a consultation inviting views on proposals to extend the current UK REACH deadlines for businesses to submit dossiers for transitional registrations. The current deadlines are October 2026, October 2028 and October 2030. Three alternative deadlines are being proposed: (1) October 2029, October 2030, October 2031; (2) April 2029, April 2031, April 2033; or (3) April 2029, April 2030, April 2031. Option 1 is the government’s preferred option, as it allows time to finalise the design and implementation of the Alternative Transitional Registration model (ATRm), while providing industry with an estimated two-year transition period. The consultation also seeks input on proposals to extend the dates by which the Health and Safety Executive (the UK REACH agency) must complete compliance checks on 20% of registration dossiers. The consultation closes on 8 September 2025.