On 21/01/2017, you requested the version in force on 21/01/2017 incorporating all amendments published on or before 21/01/2017. The closest version currently available is that of 09/05/1997.
Merchant Shipping Act
Merchant Shipping (Non-convention Ships) Safety Regulations
REVISED EDITION 1990
(25th March 1992)
[23rd April 1982]