21 CFR 101.9(c)

Rounding & declaration rules

Some printed values cannot come from any measured amount.

The rounding increments in 21 CFR 101.9(c) change partway up every scale, so a whole set of numbers can never appear on a panel — no matter what the lab report said. Type in what is printed on yours and we will name them, quote the clause, and say what the clause allows instead.

What is printed on the panel

Leave anything blank that your panel does not carry. Blank means not checked, not zero. A phrase is a valid answer — “Contains less than 1 gram” is a declaration, not a mistake. Nothing you type here is sent to us.

The milligram and microgram amounts of vitamin D, calcium, iron and potassium are not asked for, because they are not checked — see below.

0Outside the increments
0Consistent with the increments
0Not checked

What this page does not check

Everything below is either permitted in more than one form, or needs a reading of the clause rather than arithmetic. This page does not judge any of it, and none of it is counted above.

Correcting the printed number is not the same as having a correct panel

Everything above is derived from the digits on the label, on the assumption that what was printed is close to what was measured. The declaration is supposed to be derived the other way round — from the measured amount, through the clause, to the printed value — and this page never sees a measured amount.

That is the whole reason a finding above stops short of telling you what to print. It names the values the clause can produce; which of them is yours depends on a number this page was never given.