Hydrogen halides and halogens
Hydrogen halides and halogens means hydrogen chloride (HCl), chlorine (Cl 2), and hydrogen fluoride (HF).
Source
40 CFR § 63.1251
Scoping language
Terms used in this subpart are defined in the Act, in subpart A of this part, or in this section. If the same term is defined in subpart A of this part and in this section, it shall have the meaning given in this section for the purposes of this subpart.