7 C.F.R. § 29.1181
23 Grades of Leaf
| B1L | B1F | B1FR | ||
| B2L | B2F | B2FR | ||
| B3L | B3F | B3FR | B3K | |
| B4L | B4F | B4FR | B4K | |
| B5L | B5F | B5FR | B5R | B5K |
| B6L | B6F | B6FR | B6K |
10 Grades of Smoking Leaf
| H3F | |||
| H4F | H4FR | H4K | |
| H5F | H5FR | H5K | |
| H6F | H6FR | H6K |
10 Grades of Cutters
| C1L | C1F |
| C2L | C2F |
| C3L | C3F |
| C4L | C4F |
| C5L | C5F |
10 Grades of Lugs
| X1L | X1F |
| X2L | X2F |
| X3L | X3F |
| X4L | X4F |
| X5L | X5F |
8 Grades of Primings
| P2L | P2F |
| P3L | P3F |
| P4L | P4F |
| P5L | P5F |
6 Grades of Greenish
| B3V | X3V | |
| B4V | C4V | X4V |
| B5V |
20 Grades of Variegated
| B3KL | B3KF | B3KD | ||||||
| B4KL | B4KF | B4KD | B4KV | C4KL | C4KF | X4KL | X4KF | X4KV |
| B5KL | B5KF | B5KD | B5KV | |||||
| B6KL | B6KF | B6KD | B6KV |
7 Mixed Grades
| M4F | M4KR | M4KM | M4GK |
| M5F | M5KM | M5GK |
15 Grades of Green
| B4G | B4GK | C4G | C4GK | X4G | X4GK | P4G | ||
| B5G | B5GR | B5GK | B5GG | X5G | P5G | |||
| B6G | B6GK |
7 Grades of Variegated Mixed
| B3KM | X3KM | |
| B4KM | C4KM | X4KM |
| B5KM | ||
| B6KM |
6 Grades of Variegated Red or Scorched
| B3KR | X3KR | |
| B4KR | C4KR | X4KR |
| B5KR |
5 Grades of Excessively Scorched
| B3KK | |
| B4KK | |
| B5KK | |
| B6KK | |
| C4KK |
6 Grades of Slick
| B3S | X3S | |
| B4S | C4S | X4S |
| B5S |
4 Grades of Whitish-Lemon
| X3LL | C4LL |
| X4LL | C5LL |
2 Grades of Cutters (Primings Side)
| C5LP | C5FP |
13 Grades of Nondescript
| N1L | N1KV | N1GG |
| N1XL | N1GL | N1PO |
| N1K | N1GF | N1XO |
| N1R | N1GR | N1BO |
| N2 |
1 Grade of Scrap
| S |
Special factors "U" (unsound), "W" (doubtful-keeping order), "S" (strip), and "M" (mixed) may be applied to all grades. The special factors "dirt" or "sand" may be applied to any grade in the Primings group, including first quality Nondescript from the Primings group. Tobacco not covered by the standard grades is designated "No-G," "No-G-F," or "No-G-Nested."
7 C.F.R. §29.1181