To ask the Secretary of State for Defence if he will publish a list of Z-berth locations for submarines in the United Kingdom and those sites which he is planning to use.

I refer the hon. Gentleman to the reply that I gave to the hon. Member for Bow and Poplar (Ms. Gordon) on 5 May 1989 at column 276. We have, since this date, decided to establish Swansea as a Z-berth. The Royal Navy's requirements for port visits by nuclear-powered submarines are continually under review. When a port appears suitable and practical, the safety considerations are discussed with local civil authorities.

To ask the Secretary of State for Defence what consideration he has given to the development of Milford Haven as an operational base for submarines.

None.