The four types of quotas are:

(a) Assessment of annual needs, which establishes the total quantity of ephedrine, pseudoephedrine, and phenylpropanolamine necessary to be manufactured and imported by all manufacturers and importers in a calendar year.

(b) Individual manufacturing quotas, which establish the maximum quantity of ephedrine, pseudoephedrine, and phenylpropanolamine that a registered manufacturer may manufacture during a calendar year. This type of quota is only issued to DEA-registered bulk manufacturers.

(c) Procurement quotas, which establish the maximum quantity of ephedrine, pseudoephedrine, and phenylpropanolamine that a registered manufacturer may procure during a calendar year for the purpose of manufacturing into dosage-forms or other substances.

(d) Import quotas, which establish the maximum quantity of ephedrine, pseudoephedrine, and phenylpropanolamine that a registered importer may import during the calendar year for distribution to their DEA-registered customers.