7 CFR §29.1131

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗

Any lot of tobacco containing 10 percent or less of oxidized tobacco, except as provided in rule 12, shall be designated by the combination symbols “PO,” “XO,” or “BO.” Crude or green tobacco containing 10 percent or less of oxidized shall be grade “N2.”