The original Safety Rules (Radiological) applied to nuclear sites, and were also implemented by the then South Western Region at Bedminster Down; the Non — Destructive Testing Rules applied at all the CEGB locations, including the nuclear sites. A difficulty arose at one time with respect to a site licence requirement for the need for safety rules, in that (on nuclear construction sites) the CEGB does not assume respon­sibility for the site until fuel loading. In this case therefore, the safety rules cannot be enforced but the licence required that radiological safety rules be ap­plied. To overcome this difficulty, a set of rules entitled ‘Rules for the control of exposure to ionising radiations at nuclear construction sites prior to fuel loading’ were introduced by the Health and Safety Department. In essence, the function of these rules was to protect the interests of the CEGB’s staff on these sites with respect to the practices of contractors radiographers.

As the combined Radiological Safety Rules reflect the requirements of the Ionising Radiations Regu­lations 1985, which apply equally to all the CEGB’s premises, the rules apply equally to these locations also.