46 CFR 160.054-3 - Construction.
(a) Construction. The container shall be constructed of tough transparent material, not less than .008 inch nominal thickness, properly sealed around three edges, and having the fourth edge closed in such manner that it is capable of being opened and reclosed watertight. The re-openable closure may be a plastic zip seal closure without slider, or other means which meet the test requirements of § 160.054-5.
Title 46 published on 2014-10-01
no entries appear in the Federal Register after this date.