Summary of BNWAS Installation Requirements by Ship Type and Size

This document outlines the mandatory installation timelines for the Bridge Navigational Watch Alarm System (BNWAS) on various types of ships, categorized by their size and construction date.

1. Passenger Ships

• All passenger ships, regardless of size, constructed on or after 1 July 2011, must have BNWAS installed at the time of new-build.
• Passenger ships constructed before 1 July 2011 must have BNWAS installed no later than the first survey after 1 July 2012.

2. Cargo Ships

• Cargo ships over 150 gross tonnage constructed on or after 1 July 2011 must have BNWAS installed at new-build.
• Cargo ships between 150 and 500 gross tonnage constructed before 1 July 2011 must have BNWAS installed no later than the first survey after 1 July 2014.
• Cargo ships between 500 and 3000 gross tonnage constructed before 1 July 2011 must have BNWAS installed no later than the first survey after 1 July 2013.
• Cargo ships over 3000 gross tonnage constructed before 1 July 2011 must have BNWAS installed no later than the first survey after 1 July 2012.

Key Points and Recommendations

• BNWAS is mandatory for all passenger ships irrespective of size and for cargo ships above 150 gross tonnage.
• Installation deadlines depend on the ship's construction date and size category.
• New builds must have BNWAS installed at the time of construction.
• Existing ships have staggered deadlines based on tonnage and survey schedules.

Note: BNWAS enhances navigational safety by alerting the bridge watchkeeper in case of incapacitation or absence, thus preventing accidents due to unattended bridges.