UK port sanctions

In regulation 57F (specification of ships) 

A breach of the transport sanctions relating to prohibition on port entry, failing to comply with a port barring direction or a port entry or movement direction is an offence that is triable either way and carries a maximum sentence of 7 years’ imprisonment or a fine (or both).

Shipping sanctions

Russia sanctions: guidance
1.3 Specification of ships

 3. The Regulations prohibit Russian ships, and other ships specified by the Secretary of State, from entering ports in the United Kingdom. Vessels and Agents are required to declare any vessels that fall under the definitions given by the Secretary of State, or that are suspected of being sanctioned vessels, to the Harbour Authority. Russian ships are defined as a ship:

• owned, controlled, chartered or operated by a designated person (as detailed in sanctions list)

• owned, controlled, chartered or operated by persons connected with Russia

• registered in Russia, or

• flying the flag of Russia

Ships: exceptions from prohibition on port entry 61A

• Prohibition on port entry, 57A

• Directions prohibiting port entry, 57B

• Movement of ships, 57C

• Detention of ships, 57D

• Registration of ships in the United Kingdom 57E

• Specification of ships, 57F

• Notification and publicity where specification power used, 57G

• Directions under this Part: general, 57H

• Interpretation of Part 6, 57I