CFR > Title 7 - Agriculture > SUBTITLE B—Regulations of the Department of Agriculture > CHAPTER I—AGRICULTURAL MARKETING SERVICE (Standards, Inspections, Marketing Practices), DEPARTMENT OF AGRICULTURE (parts 27 to 206) > SUBCHAPTER A—COMMODITY STANDARDS AND STANDARD CONTAINER REGULATIONS (parts 27 to 44) > PART 29—TOBACCO INSPECTION > SUBPART C—Standards (§29.1001 to §29.6131) > 29.1131—Rule 25.

29.1131—Rule 25.

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.”