Is all solid wood considered inherently non-emitting? I’ve seen sources that say only solid wood flooring counts as inherently non-emitting.

Yes, all unfinished or untreated solid wood is considered inherently non-emitting and is fully compliant without any VOC emissions testing, as long as it does not include integral organic-based surface coatings, binders, or sealants. This was clarified in Reference Guide correction ID #100002195. This correction specifically opened up the definition to include all unfinished or untreated solid wood.