Phenolic resin
Phenolic resin means a thermoset resin that is a condensation product of formaldehyde and phenol, or a formaldehyde substitute and/or a phenol substitute. Substitutes for formaldehyde are exclusively aldehydes and include acetaldehyde or furfuraldehyde. Substitutes for phenol include other phenolic starting compounds such as cresols, xylenols, p-tert-butylphenol, p-phenylphenol, nonylphenol, and resorcinols.
Source
40 CFR § 63.1402
Scoping language
The following terms used in this subpart shall have the meaning given them in 63.2, 63.101, 63.111, and 63.161 as specified after each term: