CBP “updates” to its website that came this August do not bring much new. There is still work to be done for “Other Agencies” section, for example, that does not list upland cotton program administered by USDA’s AMS Cotton Division. Of some value, one may find CBP contact information with respect to quotas (202-863-6560; hq.quota@dhs.gov). Tariff Schedule, it seems, remains the most reliable guidance for quota applications.
Relevant links: Commodities Subject to Import Quotas; Quotas Administered by Other Agencies; Are My Goods Subject to Quota?; Quota Administration