| Grades | Grade names and specifications | 
|---|---|
| X1L | Choice Buff Flyings. | 
| Tissuey, mellow, open to porous, even, clear finish, strong color intensity, 95 percent uniform, and 5 percent injury tolerance. | |
| X2L | Fine Buff Flyings. | 
| Tissuey, mellow, open to porous, even, moderate finish and color intensity, 90 percent uniform, and 10 percent injury tolerance. | |
| X3L | Good Buff Flyings. | 
| Tissuey, ripe to mellow, open to porous, wavy, dull finish, weak color intensity, 80 percent uniform, and 20 percent injury tolerance. | |
| X4L | Fair Buff Flyings. | 
| Tissuey, mature to ripe, open to porous, wrinkly to wavy, dingy finish, pale color intensity, 70 percent uniform, and 30 percent injury tolerance. | |
| X5L | Low Buff Flyings. | 
| Tissuey, mature to ripe, open to porous, wrinkly, dingy finish, pale color intensity, 60 percent uniform, and 40 percent injury tolerance. | |
| X1F | Choice Tan Flyings. | 
| Thin, mellow, open to porous, even, clear finish, strong color intensity, 95 percent uniform, and 5 percent injury tolerance. | |
| X2F | Fine Tan Flyings. | 
| 
                     
                                
                                    Code of Federal Regulations
                                
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| Thin, mellow, open to porous, even, moderate finish and color intensity, 90 percent uniform, and 10 percent injury tolerance. | |
| X3F | Good Tan Flyings. | 
| Thin, ripe to mellow, open to porous, wavy, dull finish, weak color intensity, 80 percent uniform, and 20 percent injury tolerance. | |
| X4F | Fair Tan Flyings. | 
| Thin, mature to ripe, open to porous, wrinkly to wavy, dingy finish, pale color intensity, 70 percent uniform, and 30 percent injury tolerance. | |
| X5F | Low Tan Flyings. | 
| Thin, mature to ripe, open to porous, wrinkly, dingy finish, pale color intensity, 60 percent uniform, and 40 percent injury tolerance. | |
| X4M | Fair Mixed Color Flyings. | 
| Medium to tissuey body, mature to ripe, firm to porous, wrinkly to wavy, dingy finish, pale color intensity, 70 percent uniform, and 30 percent injury tolerance. | |
| X5M | Low Mixed Color Flyings. | 
| Medium to tissuey body, mature to ripe, firm to porous, wrinkly, dingy finish, pale color intensity, 60 percent uniform, and 40 percent injury tolerance. | |
| X4G | Fair Green Flyings. | 
| Medium to tissuey body, immature, firm, wrinkly to wavy, dingy finish, 70 percent uniform, and 30 percent injury tolerance. | |
| X5G | Low Green Flyings. | 
| Medium to tissuey body, immature, firm, wrinkly, dingy finish, 60 percent uniform, and 40 percent injury tolerance. | |