Ballast treatment system makers wishing to offer systems with alternative components have been given guidance by the US Coast Guard on the testing and validation procedure in a new policy letter.
A PDF of the CG-OES Policy Letter 03-20 is available on the link below…
The Coast Guard’s type approval regulations provide requirements that a ballast system must meet to obtain type approval (46 CFR 162.060). Increasingly, manufacturers seek to include alternate components in the system bill of materials to give their customers more options for the wide range of circumstances under which systems are used. Alternate components include any components not listed in the Operation, Maintenance, and Safety Manual (OMSM). The only alternate components addressed by this policy letter are filters.
In lieu of dictating specific testing protocols for individual alternate components, 46 CFR 162.060-16(c) defers the determination of testing requirements to the Coast Guard’s Marine Safety Center (MSC). In addition, an Independent Laboratory (IL), previously accepted by the Coast Guard under 46 CFR 159.010 must ensure that any alternate components meet the requirements of 46 CFR 162.060-34. The scope of work necessary for the IL to evaluate an alternate component varies widely, based on the role of the component within the BWMS and its relation to the original component.