Section 19
SEC. 19. Upon request of the President, or upon resolution of either or both Houses of Congress, or upon its own motion, or when in the judgment of the Commission there is good and sufficient reason therefor, upon application of any interested party, the Commission shall investigate the differences in the costs of production of domestic article and of any like or similar foreign article. In the course of the investigation the Commission shall hold hearings and give reasonable public notice thereof, and shall afford reasonable opportunity for parties interested to be present, to produce evidence, and to be heard at such hearings. The Commission is authorized to adopt such reasonable procedure and rules and regulations as it deems necessary to execute its functions under this Act. The Commission shall report to the President the results of the investigation and its findings with respect to such differences in costs of production. If the Commission finds it shown by the investigation that the duties expressly fixed by existing law do not equalize the differences in the costs of production of the domestic article and the like or similar foreign article when produced in the principal competing country, the Commission shall specify in its report such increases or decreases in rates of duty expressly fixed by existing law (including any necessary changes in classification) as it finds shown by the investigation to be necessary to equalize such differences.