Three bands
On this page11
Band one, under 200 percent
The package is a single-serving container and the entire content must be labeled as one serving. The smallest band and the one with the strongest consequence.
Band two, 200 to 300 percent
Dual-column labeling is required, showing both the per-serving and the per-unit amounts. The label carries two sets of numbers side by side.
Band three, above 300 percent
Ordinary per-serving declaration, with the serving derived from the reference amount in the usual way.
And a voluntary sliver at 150 to 200 percent
Still a single-serving container, but the dual column is permitted. A maker who wants to show both may.
The conversion rules sit underneath
Under 50 percent of the reference amount the serving is multiple whole units; 50 to 67 percent the maker may declare one or two; 67 to 200 percent the serving is one unit.
Which is a sliding scale rather than a cliff
The 200 percent line is the famous one because it changes the kind of label, but the bands below it change how many units make a serving.
For a dosed product the unit matters twice
Once as a serving for labeling, and once as a dose for the consumer. Those are the same number in a well-designed product and they are not required to be.
Measured against our shelf
For a syrup at a 30 mL reference amount: 22 of our 97 containers sit under 60 mL and are single-serving containers, 2 sit in the 60 to 90 mL dual column band, and 73 sit above it.
Which is a usable shelf for all three bands
Not a shelf that forces one outcome. If you want a single-serving syrup container we have 22, and if you want to avoid the dual column there are only 2 sizes to steer around.
And for a beverage the shelf has only one answer
The beverage reference amount is 360 mL, so 200 percent is 720. Our largest container is 473 mL. Every container on this shelf is a single-serving container for a beverage.