7 C.F.R. § 29.3182
Groups X—Flyings. C—Lugs or Cutters B—Leaf. T—Tips. M—Mixed. N—Nondescript. S—Scrap. Qualities 1—Choice. 2—Fine. 3—Good. 4—Fair. 5—Low. Colors L—Buff. F—Tan. FL—Tannish buff. FR—Tannish red. R—Red. D—Dark red. K—Variegated. M—Mixed. V—Greenish. VF—Greenish tan. VR—Greenish red. G—Green. GF—Green tan. GR—Green red.
[24 FR 8771, Oct. 29, 1959, as amended at 51 FR 40407, Nov. 7, 1986]