Thin Leaf (C Group).

CFR · 2024-01-01 · US · Title 7

This group consists of leaves usually grown at the center portion of the stalk. These leaves normally have a rounded tip, are thinner in body than those of the B group, and show little or no ground injury. Choice- and fine-quality tobacco of this group has a distinctive, smooth leaf surface.

official document · source cfr-2024 · id 7:§ 29.2438