Guidance

MGN 672(M) Extended Dry-Docking

Extended dry-docking allows vessels to be inspected out of the water at 7.5 years intervals, rather than 2 inspections in 5 years (no more than 36-month intervals), subject to eligibility.

• From: Maritime and Coastguard Agency
• Published: 13 August 2025

Documents

MGN 672(M) extended dry-docking

Ref: Rev 08 2025

HTML

MGN 672(M) extended dry-docking

Ref: Rev 08 2025

PDF, 195 KB, 7 pages

Annex 1 extended dry docking planning document

Ref: Rev 08 2025

MS Word Document, 94.9 KB

MSF6570 request for entry onto extended dry dock

Ref: Rev 08 2025

MS Word Document, 64.7 KB

MSF6571 extended dry docking company annual survey declaration

Ref: Rev 08 2025

MS Word Document, 86.8 KB

MSF6572 extended dry docking recognised organisation in water declaration

Ref: Rev 08 2025

MS Word Document, 89.3 KB

Details

Notice to all shipowners, masters and UK Recognised Organisations.

This notice should be read in conjunction with:

• The Merchant Shipping (Survey and Certification) Regulations 2015,
• Merchant Shipping Notice 1672 (M+F) (as amended),
• Merchant Shipping Notice 1751(M+F) (as amended) and Marine Guidance Note 546 (M) (as amended).

Published 13 August 2025