Some good news from London.  On Thursday, the International Maritime 
Organization (IMO) adopted guidelines to reduce underwater noise from 
commercial ships.

The new guidelines:

-         recognize that shipping noise can have short-term and long-term 
impacts on marine life;

-         call for measurement of shipping noise according to objective ISO 
standards, which are themselves on the verge of adoption;

-         identify computational models for determining effective quieting 
measures;
-         provide guidance for designing quieter ships and for reducing noise 
from existing ships, especially from propeller cavitation; and

-         advise owners and operators on how to minimize noise through ship 
operations and maintenance, such as by polishing ship propellers to remove 
fouling and surface roughness.


While these (as yet) are voluntary guidelines, not mandatory code, they put the 
IMO's imprimatur on noise reduction.

Thanks go to the U.S. government, which put the issue on IMO's agenda and 
shepherded it through the IMO's byzantine processes, and to Germany, Australia, 
Spain, the UK, and other governments that supported and helped develop the 
guidelines.  Thanks also to the coalition of progressive trade groups, research 
and academic scientists, and NGOs who partnered with member states to get this 
done.  The more difficult work - implementation - lies ahead, but the 
guidelines are a milestone in the advancement of this issue.

Please contact me if you'd like an unofficial copy of the guidelines, or if you 
have questions or suggestions for the next phase of work.

Cheers,
Michael


Michael Jasny  |  Director, Marine Mammal Protection
Natural Resources Defense Council| www.NRDC.org<http://www.nrdc.org/>
4479 W. 5th Avenue | Vancouver, BC V6R1S4
o: 604.736.9386 | c: 310.560.5536 | e: [email protected]<mailto:[email protected]>

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