; and (2) assist the Commission in the review of the petition by verifying such information and providing such other assistance as the Commission may request. (c) Actions by the Commission Upon receipt of the petition, the Commission shall promptly publish notice in the Federal Register and on the website of the Commission that the Commission has received the petition and initiated an investigation. (d) Hearing If the petitioner, or any other person found by the Commission to have a substantial interest in the proceedings, submits not later than 10 days after the date of the Commission’s publication under subsection (c) a request for a hearing, the Commission shall provide for a public hearing and afford such interested persons an opportunity to be present, to produce evidence, and to be heard. 102. Group eligibility requirements (a) Criteria A group of workers shall be certified by the Commission as eligible to apply for adjustment assistance under this Act pursuant to a petition filed under section 101 if the Commission determines that— (1) such workers were coal miners, coal utility workers, or other workers in the coal industry or a coal-dependent industry, as determined by the Commission; (2) a significant number or proportion of the workers in such workers’ company have become totally or partially separated, or are threatened to become totally or partially separated or have experienced or are threatened to experience a significant reduction in wages; (3) (A) sales or production, or both, of such company have decreased absolutely; (B) there has been a shift by such workers’ company to other types of sales or products; (C) such workers’ company has been closed or relocated or acquired from another entity or foreign country; or (D) the sales or production or both have caused a shift that contributed to such worker’s separation or threat of separation