This document establishes the specific regulatory amendments required to modify the classification of insurable and excepted employments under the National Insurance (Industrial Injuries) Act. The text is authored by the legislative bodies of Great Britain, functioning as a formal statutory instrument. It provides the legal framework necessary to adjust how specific categories of workers are assessed for industrial injury insurance coverage, ensuring alignment with contemporary labor standards of the 1970s.

Legal professionals and historians utilize this document as a primary source for tracking the evolution of British social security legislation. It is considered a technical reference text intended for administrative and legal application rather than general reading.