Does not roll is a specification no other property in this library has.
Section decides stowage
A round bottle wastes the corners of a locker and rolls when the boat moves. A square or oval section packs and stays put, which is two problems solved by one dimension.
Which is why the F style bottle belongs here
12 PE F style bottles on this shelf. Flat sided, square in plan, and the traditional shape for a fluid carried on a vehicle or a vessel.
Height matters more than volume
A locker has a lid. A tall bottle that will not stand up under it gets laid on its side, and a container stored on its side is a container storing against its closure.
So prefer squat over tall at the same capacity
Which is the opposite of a retail shelf, where tall reads as more. For a boat the low wide container is the better object.
Above the bilge, always
The placard regulation names the bilge and ballast pump control station as a placard location, which tells you what the regulator thinks the discharge path is. Store above it.
In a tray
A shallow tray under a group of containers is the only secondary containment available on a small boat, and it costs nothing. One leak then stays in the tray instead of reaching the bilge.
Chocked, not just stowed
A container that can move will move, for a whole season. A chock, a strap or a snug box is what stops the slow working loose that produces the film under the bottle.
Upright and labelled outward
So the level can be read and the label can be read without lifting anything. 83 natural HDPE containers on this shelf let the level be seen through the wall, which is the better version of the same idea.
Separate the oils from everything else
Because the oils are the ones the sheen standard names. A locker that holds only oils, in a tray, above the bilge, is a cheap and complete control.
And keep the empties with the full ones
An empty oil bottle still has a film in it and still has to come ashore. A sealed bag in the same locker is where it belongs, not loose in a cockpit.
References
The Davis Pack Supply catalog, measured 18 October 2026. The marine shelf is 880 rows: 354 containers and 526 closures. 50 mL to 3,785 mL with a median of 237; 101 containers over a pint, 45 over a quart, 13 over a gallon and none over five gallons. 166 HDPE, 117 PET, 71 PP, and no glass or metal at all. 163 jars, 159 bottles, 19 tubs and pails, 12 jugs, 1 tube. 136 white, 83 natural, 54 clear, 39 black, 20 amber. Closures: 368 continuous thread, 39 child resistant, 26 dome lids, 26 spouted, 18 flip top, 11 liners and sealing discs, 10 round tubs, 7 specialty, 7 buttress, 6 phenolic, 2 trigger sprayers.
33 CFR 155.450. "A ship, except a ship of less than 26 feet in length, must have a placard", "at least 5 by 8 inches, made of durable material", fixed "in a conspicuous place in each machinery space, or at the bilge and ballast pump control station", stating "Discharge of Oil Prohibited" and setting out that the Federal Water Pollution Control Act prohibits the discharge of oil into the navigable waters of the United States, on pain of "substantial civil penalties and/or criminal sanctions including fines and imprisonment". The placard "must be printed in the language or languages understood by the crew".
law.cornell.edu33 CFR 151.59, the garbage placard. The master or person in charge of a ship to which the section applies must display placards "at least 20 cm (8 in) wide by 12 1/2 cm (5 in) high, made of a durable material, and legible", "displayed in prominent locations and in sufficient numbers so that they can be read by the crew and passengers", in locations "readily accessible to the intended reader" which "may include embarkation points, food service facilities, garbage handling spaces, living spaces, and common areas on deck". The placard notifies of the prohibition on discharging garbage into the navigable waters of the United States and other waters except as specifically allowed, the complete prohibition on discharging plastic into all waters, liability for civil and criminal penalties, and the possibility of regional, state and local restrictions.
law.cornell.edu 