As a public service, NIS monitors and reports on non-sensitive developments at and about British nuclear weapons production related sites.

NIS publishes material relating to the Atomic Weapons Establishment (AWE) Aldermaston and Burghfield sites, located in the southern English County of West Berkshire. Since the 1950s, AWE is where the design, production, assembly, maintenance, disassembly and decommissioning of nuclear weapons takes place. Between 2004 and 2015, building developments are underway to enable a new generation of warheads to be researched and designed without underground nuclear testing. See monthly NIS Updates on the new developments at AWE.

Other nuclear weapons related sites include the Clyde facilties at RNAD Coulport and the Naval Base Faslane; RRMPOL Derby and DML Devonport. All these sites creat nuclear discharges and waste.