46 CFR 169.571 - Odorizing units.
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Each carbon dioxide extinguishing system installed or altered after July 9, 2013, must have an approved odorizing unit to produce the scent of wintergreen, the detection of which will serve as an indication that carbon dioxide gas is present in a protected area and any other area into which the carbon dioxide may migrate. “Altered” means modified or refurbished beyond the maintenance required by the manufacturer's design, installation, operation and maintenance manual.
[USCG-2006-24797, 77 FR 33890, June 7, 2012]
Title 46 published on 2014-10-01
no entries appear in the Federal Register after this date.