The Administrator shall determine the total quantity of ephedrine, pseudoephedrine, and phenylpropanolamine, including drug products containing ephedrine, pseudoephedrine, and phenylpropanolamine, necessary to be manufactured and imported during the following calendar year to provide for the estimated medical, scientific, research, and industrial needs of the United States, for lawful export requirements, and for the establishment and maintenance of reserve stocks.

In making his determinations, the Administrator shall consider the following factors:

Total net disposal of the chemical by all manufacturers and importers during the current and 2 preceding years;

Trends in the national rate of net disposal of each chemical;

Total actual (or estimated) inventories of the chemical and of all substances manufactured from the chemical, and trends in inventory accumulation;

Projected demand for each chemical as indicated by procurement and import quotas requested pursuant to § 1315.32; and

Other factors affecting medical, scientific, research, and industrial needs in the United States, lawful export requirements, and the establishment and maintenance of reserve stocks, as the Administrator finds relevant, including changes in the currently accepted medical use in treatment with the chemicals or the substances which are manufactured from them, the economic and physical availability of raw materials for use in manufacturing and for inventory purposes, yield and stability problems, potential disruptions to production (including possible labor strikes), and recent unforeseen emergencies such as floods and fires.

The Administrator shall, on or before May 1 of each year, publish in the Federal Register, general notice of an assessment of annual needs for ephedrine, pseudoephedrine, and phenylpropanolamine determined by him under this section. A notice of the publication shall be mailed simultaneously to each person registered to manufacture or import the chemical.

The Administrator shall permit any interested person to file written comments on or objections to the proposed assessment of annual needs and shall designate in the notice the time during which the filings may be made.

The Administrator may, but is not required to, hold a public hearing on one or more issues raised by the comments and objections filed with him. In the event the Administrator decides to hold such a hearing, he shall publish a notice of the hearing in the Federal Register. The notice shall summarize the issues to be heard and set the time for the hearing, which shall not be less than 30 days after the date of publication of the notice.

After consideration of any comments or objections, or after a hearing if one is ordered by the Administrator, the Administrator shall issue and publish in the Federal Register the final order determining the assessment of annual needs for the chemicals. The order shall include the findings of fact and conclusions of law upon which the order is based. The order shall specify the date on which it shall take effect. A notice of the publication shall be mailed simultaneously to each person registered as a manufacturer or importer of the chemical.