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USCG clarification on BWMS using UV radiation

The Coast Guard has made no decision re the general acceptability of UV as a treatment process Recently the Coast Guard has been responding to rumors that type approval of ballast water managementsystems (BWMS) that incorporate ultraviolet radiation (UV) as a disinfection process will not be possibleunder Coast Guard type approval requirements. These rumors are not true.The Coast Guard has made no decision regarding the general acceptability ofUV as a treatment process or the specific acceptability of any UV-based BWMS for purposes of typeapproval under the Coast Guard's March 2012 Ballast Water Discharge Standard Final Rule.USCG believes this misunderstanding has arisen due to differences between the type approval testing that hasbeen conducted in accordance with the International Convention for the Management of Ships' BallastWater and Sediments adopted by the International Maritime Organization in 2004, and the Coast Guard'stype approval testing procedures as established in the Ballast Water Discharge Standard Final Rule,specifically in 46 Code of Federal Regulations (CFR) Part 162.060.Some individuals are under theimpression that UV systems with type approval granted by other Administrations on the basis of numbersof "viable organisms" will not pass the Coast Guard's "living organism" threshold, and therefore cannotbe type approved by the Coast Guard.The Coast ...

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USCG: Fixed Water- Based Local Application Fire- Fighting Systems

Bulletin addresses the intentional securing of fixed water-based fire fighting systems onboard USCG has issued Marine Safety Information Bulletin No 41. to address the international securing of fixed water- based fire fighting systems onboard certain vessels.Machinery spaces onboard vessels are particularly high risk areas for fires. Locations such as main and auxiliary engine tops, fuel oil purifiers, burners and incinerator burners are major areas of concern. Fires in these areas can spread very quiclky, causing serious damage placing vessels, their crews and the ports they visit at risk. To protect against this fire risk, Category A machinery spaces containing oil-fired boilers or oil fuel units must be fitted with a fixed fire-extinguishing sustem (SOLAS II-2/10.5.1.1). In addition, Category A machinery spaces above 500m3 in volume must have an approved type of fixed water-based or equivalent local application fire-extinguishing system (SOLAS II-2/10.5.6.1). This fixed water-based local application fire-fightinh system is intended to protect the crew and affected machinery quiclky, and without the necessity of engine shutdown, personnel evacuation, or sealing the space.Where the Category A machinery space protected by the local application fire-extinguishing system is periodically unattended, the system must be provided with both automatic and manual release capability.During recent port ...

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