(a) Public hearing. The Commission will provide notice of, and hold, a public hearing in connection with each investigation initiated under section 322(a) or section 324(d)(2) of the Act and under this part after reasonable notice thereof has been published in the Federal Register.

(b) Opportunity to appear. The Commission will afford all interested parties, as defined in section 321(8) of the Act and § 208.2(i) of this part, an opportunity to be present, to present evidence, to respond to presentations of other parties, and otherwise to be heard.