The article outlines the UK's plan to manage its fishing efforts for western waters crab and scallop in ICES Area VII by setting days at sea limits for vessels. These limits, set to prevent exceeding effort limits, will be enforced through licence variations and will be monitored by the MMO. If the UK is likely to exceed these limits, the area VII crab fishery will be closed for over 15 metre vessels. The days at sea scheme applies to UK fishing vessels of 15 metres or more, with days at sea countable in calendar days and not transferable. Vessels must record their trip data in UTC and steaming trips are not included in days at sea if certain conditions are met. Vessels that have used their allocation of days must cease fishing for scallops and return to port.