1.1 Ships participating in the ship reporting
system:
Ships of 300 gross tonnage and upwards proceeding to or
from ports or anchorages in the Sound or passing through the reporting
area.
Pursuant to SOLAS 1974 Convention, as amended, the SOUNDREP
does not apply to warships, naval auxiliaries, other ships owned or
operated by a Contracting Government and used, only on Government
non-commercial service. However, such ships are encouraged to participate
in the reporting system.