Covered is the manufacturer, not the sewer
On this page10
The rule names who it covers in one sentence
Manufacturers and importers of textile wearing apparel and certain piece goods, and that includes any person or organization that directs or controls the manufacture or importation of covered products.
The last clause is the one with reach
Directs or controls brings in a party that does not own a factory. A brand that specifies the garment and has it made is inside the description even though nothing is manufactured on its premises.
Certain Piece Goods is a defined term and it is narrower than it sounds
Textile products sold by the piece from bolts or rolls for the purpose of making home sewn textile wearing apparel. Fabric for curtains is not in the definition, because the purpose named is apparel.
And three things are carved out by measurement
Manufacturers remnants up to ten yards long that are clearly and conspicuously marked pound goods; fabrics of undetermined origin, meaning the fiber content is not known and cannot easily be ascertained; and trim, up to five inches wide.
Five inches is a hard edge
A trim five inches wide sits outside the definition. The same trim at five and a quarter does not have that exclusion available to it. Which is the fourth defined term in this library that is written in title case and means something tighter than its plain reading.
Then the exemption that bears on a shelf like ours
Manufacturers and importers need not provide care information with products sold to institutional buyers for commercial use. The exemption does not describe the garment at all. It describes the buyer.
Which is unusual among the rules in this library
Most of them attach to a thing: a volume, a surface, a material, a hazard class. This one switches off based on the identity of the purchaser, and the same shirt can be inside or outside depending on who the invoice goes to.
And the case pack on this shelf says which kind of buyer it serves
A median container case of 288 and a smallest closure case of 200 is not a consumer shelf. It is a wholesale shelf, which is the same category of buyer the exemption names, though for an entirely unrelated purpose.
None of which makes a notion a covered product
A button is not textile wearing apparel and it is not a piece good sold from a bolt. Nothing on these pages says part 423 applies to anything in this group.