Watertight and weathertight integrity - C2

Controlling the risks that weather and water pose to a vessel.

Download NSCV Section C2 - Watertight and weathertight integrity PDF1.43 MB

Full title 

National Standard for Commercial Vessels

Part C – Design and construction

Section 2 – Watertight and weathertight integrity

Current edition

Edition 1.1

Commenced 1 October 2024

About 

NSCV C2 provides the design, construction, installation and maintenance standards for:

  • watertight and weathertight integrity
  • rapid drainage of water from decks
  • reserve buoyancy, and
  • prevention of overloading.
Announcement 

Mandatory compliance commencing February 2027

Mandatory compliance with NSCV Part C2 is commencing in February 2027, subject to proposed changes to Marine Order 503 (certificate of survey - national law) taking effect.

The proposed changes will remove the references to USL Code 5C and 5D from the new vessel standards listed in MO503 now that NSCV C2 has been completed and published.

Until then, compliance with NSCV Part C2 remains voluntary, with GES 2022/1 PDF210.13 KB available as a compliance pathway for vessels required to meet MO503 standards. Transitional vessel arrangements remain unchanged.

Assistance and tools 

Frequently asked questions (FAQs) about The National Standard for Commercial Vessels, Part C–Design and construction, Section 2.

Sections of the USL Code to apply under the national system PDF233.76 KB

International Convention on Load Lines (ILLC) and Protocol of 1988 (ILLC)

Use these editable templates to prepare a stability placard.

Although these templates are optional, they can help support your compliance with the NSCV.

There are 2 versions available to download.

Things to remember when you use this optional placard template:

  • print on durable and weather-resistant material
  • display in a prominent position
  • maintain in good repair and legible condition.

Generic equivalent solution (GES):

Author 

Policy and Regulation Division

To provide feedback or report issues / errors with this or any other any NSCV or related webpages, contact us at NSCVfeedback@amsa.gov.au 

Please include the name and clause number of the NSCV in the email.

For enquiries relating to an application please email dcvsurvey@amsa.gov.au

Last updated: 10 April 2026