25 Pa. Code § 291.313
(b) If the approved operation plan provides for the surface application of residual waste for top or side dressing on hayfields, for pastures, for cover crops or for no-till crops when the previous no-till crop was harvested for grain in a manner that left adequate crop residue, the Department may do one of the following:
This section cited in 25 Pa. Code § 291.311 (relating to general requirements).