Combination symbols.

A color or group symbol used with another symbol to form the third factor of a grademark to denote a particular side or characteristic of the tobacco. As applied to flue-cured tobacco, the combination symbols are XL—lug side, PO—oxidized primings, XO—oxidized lugs or cutters, BO—oxidized leaf or smoking leaf, GL—thin-bodied nondescript, GF—medium-bodied nondescript, LP—lemon (primings side), and FP—orange (primings side), KK-excessively scorched. [48 FR 29671, June 28, 1983, as amended at 51 FR 25027, July 10, 1986]