The container writes the sentence
On this page12
The section is titled for it
Identification of container types. Which is a labeling section whose subject is the container rather than the product.
A nonrefillable container has to say so
The statement "Nonrefillable container.", a reuse statement, and a recycling or reconditioning statement. Three elements that exist because of the kind of container it is.
A refillable container says something different
"Refillable Container. Refill this container with pesticide only. Do not reuse this container for any other purpose." One sentence, doing the opposite job.
So the container selects the rule
Which is the inverse of every other spine in this library. Elsewhere a rule constrains the container; here the container determines which text is required.
And the two are mutually exclusive
A container is one kind or the other, and the label has to match. Getting it wrong is not a near miss, it is the wrong statement.
Which makes the choice a labeling decision made at purchase
Before artwork, before copy, before anything. The container type is upstream of the words.
And our catalog does not record which kind anything is
We publish material, capacity, neck finish, dimensions, liner, temperature range and case pack. There is no refillable or nonrefillable field.
So the one attribute the section turns on is the one we lack
Which is the same shape as the hazmat property, where the defining attribute of two leaves was a mark we do not record.
The scope is narrower than it looks
Part 156 is pesticide labeling, and a pet grooming product is reached only if it is a pesticide, which turns on the claims made for it. Nothing here rules on any product.
And a container cannot be relabeled into the other kind
The statement describes what the container is. Printing the refillable sentence on a nonrefillable container does not make it refillable; it makes the label wrong.
Then there is the shelf, which is a separate problem
80 glass containers, nothing over 120 mL, and no pump or sprayer anywhere. For a pet shampoo that is the wrong shelf and it has its own pages.