SI 2016/654. The British Underwater Test and Evaluation Centre Byelaws 2016. Comes into force 29th June. These Byelaws regulate access to and activities which may be carried out in areas of land, foreshore and sea in the British Underwater Test and Evaluation Centre (“BUTEC”). The Centre comprises the BUTEC Base Area at the Kyle of Lochalsh and the BUTEC Sea Ranges, between the isle of Raasay and Applecross on the mainland.