“work of engineering construction”

1. The Construction (Health, Safety and Welfare) Regulations 1996 SI
2. Control of Pollution Act 1974 Act 2 definitions
3. Factories Act 1961 Act
4. The Railways and Other Guided Transport Systems (Safety) Regulations 2006 SI
5. The Railways (Safety Case) Regulations 2000 SI

Definitions are taken from the instruments as published on zoomLaw, for guidance only. Check the instrument itself for its scope and any amendments.