The Coast Guard Marine Safety Center issued the 35th U.S. Coast Guard Ballast Water
Management System Type Approval Certificate to oneTank, LLC after a detailed review
of the manufacturer’s type approval application determined the system met the
requirements of 46 CFR 162.060.
The treatment principle of the oneTank consists of in-tank chemical injection, with in-
tank neutralization prior to discharge. This approval covers models with maximum
treatment volumes up to 4,000 m3.
A complete list of ballast water management systems that have been approved or have
type approval applications currently under review can be found on the Marine Safety
Center webpage. Redacted copies of all completed type approval certificates are also
This blog is not a replacement or substitute for the formal posting of regulations and updates or existing processes for receiving formal feedback of the same. Links provided on this blog will direct the reader to official publications, such as the Federal Register, Homeport and the Code of Federal Regulations. These publications remain the official source for regulatory information published by the Coast Guard.