Ariz. Admin. Code § 20-5-803
In addition to the definitions provided in A.R.S. § 23-401, the following definitions apply to this Article:
"Act" means the Arizona Occupational Safety and Health Act of 1972.
"Affected employee" means an employee of a cited employer who is exposed to the alleged hazard described in a citation, as a result of assigned duties.
"Authorized employee representative" means a labor organization which has a collective bargaining relationship with the cited employer and which represents affected employees.
"Citation" means a written communication issued by the Division of Occupational Safety and Health of the Industrial Commission of Arizona pursuant to A.R.S. § 23-415.
"OAH" means the Arizona Office of Administrative Hearings.
"Party" shall have the same meaning as "interested party," as defined in A.R.S. § 23-401.
"Representative" means any person, including an authorized employee representative, authorized by a party to represent the party under A.R.S. § 23-429 in a proceeding.
Ariz. Admin. Code § R20-5-803