7 CFR §29.1079
Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
Any tobacco that does not blend with the normal colors of the types; any leaf of which 20 percent or more of its surface is grayish, mottled, bleached, doty-faced, scalded, or sunbaked. (See Rule 15.)