Where the Regulations apply The Regulations apply to Great Britain but not to Northern Ireland, where 13 separate Regulations have been made. They also apply to certain work activities carried out in United Kingdom territorial waters adjacent to Great Britain and in the United Kingdom sector of the Continental Shelf (see regulation 12). These are the work activities specified by the Health and Safety at Work etc Act 1974 (Application outside Great Britain) Order 2001 (SI 2001/2127) (the 2001 Order) which include, for example, offshore installations, wells, pipelines and pipeline works, and related activities. The Regulations also apply to mines under the sea and certain other activities in territorial waters, such as the loading and unloading of ships, the construction and repair of ships, the construction and repair of buildings or other structures, and certain diving operations.