The code states "identified as suitable" not listed. In the past, the builder or GC has supplied the fixtures (and everyones taste is different): if they aren't to the specs found in 410.16, they get a run by the AHJ. Some spec clothes closets are so strangely arranged that some serious planning must occur for the end result to be compliant.
As an example:
410.116 Clearance and Installation.
(A) Clearance.
(1) Non-Type IC. A recessed luminaire
that is not identified
for contact with insulation shall have all recessed parts
spaced not less than 13 mm (1⁄2 in.) from combustible
materials. The points of support and the trim finishing off
the opening in the ceiling or wall surface shall be permitted
to be in contact with combustible materials.
Who identifies this, the manufacturer does. While the AHJ may be willing to accept it, they may defer to the manufactures instruction and identified intent.