Ballast Water Management Decision Support System - Global Maritime Transport and Ballast Water Management: Issues and Solutions - page 228

Situation (2), the vessel has left the last port of call but is not able to conduct BWM
on its intended route, and may already be in the port of arrival but the port entry
permit 1 is not yet issued, and:

- did not use the BWMS;

- did not conduct BWM, but complies with the requirements (when the D-1

standard is required) because on its intended route the vessel does not exit the
50 nautical miles from nearest land and 200 m water depth limits to enable a
BWE, nor it crosses a ballast water exchange area (BWEA);

- did not conduct BWM for other reasons;

- is deviated from its intended route to the BWEA and/or slowed down to con-

duct BWE and complies with the requirements;

- would need to be sent outside the 50 nautical miles and 200 m limits, or to a

BWEA at a substantial change of her intended route, or use an alternative
solution 2 to conduct BWM and comply with the requirements;

- depending on the RA result, may be allowed to discharge unmanaged ballast

water,

- may be penalized, or

- may not be allowed to discharge ballast water without BWM.

Situation (3), the vessel is in the port of arrival and has received the port entry per-
mit, and:

- may be targeted for different levels of compliance control;

- if the vessel is found non-compliant with BWM requirements, depending on

the RA result, she may be allowed to discharge unmanaged ballast water, may
be penalized, or may not be allowed to discharge unmanaged ballast water.

Situation (4), the vessel has received clearance 3 and left the port, and:

- the vessel's ballast water was sampled and was identifi ed as non-compliant

with BWM requirements, this is communicated to the vessel, the vessel's
administration, the recognized organization responsible for the issue of cer-
tifi cates, and the next port of call; or

- the vessel's ballast water was sampled and was identifi ed as compliant with

BWM requirements, no action is required.

The high level elements with the four different vessel's situations are presented
in Fig. 3 .
The DSS integrates seven basic elements:

- data collection and management process;

- communication processes;

- ballast water RA process;

1 Permit to start operations in a port, including anchorage, after having complied with port State
requirements and submitted all required documents for port entry.
2 e.g., alternative ballast water discharge area, port reception facilities.
3 Permit to leave the port after having complied with port State requirements and submitted all
required documents for leaving the port.