(a) For the purposes of this part, the term the Act shall mean the Age Discrimination in Employment Act of 1967, as amended; the EEOC or Commission shall mean the Equal Employment Opportunity Commission or any of its designated representatives; charge shall mean a statement filed with the Commission by or on behalf of an aggrieved person which alleges that the named prospective defendant has engaged in or is about to engage in actions in violation of the Act; complaint shall mean information received from any source, that is not a charge, which alleges that a named prospective defendant has engaged in or is about to engage in actions in violation of the Act; charging party means the person filing a charge; complainant means the person filing a complaint; and respondent means the person named as a prospective defendant in a charge or complaint, or as a result of a Commission-initiated investigation.