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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