7 Pa. Code § 73.2 – Fertilizer terms, names and definitions.

(a) The fertilizer terms used shall be those contained in the current edition of the Official Publication of the Association of American Plant Food Control Officials, Inc.
(b) Except as the Secretary designates otherwise in specific cases, the names and definitions for commercial fertilizers shall be those adopted by the Association of American Plant Food Control Officials.

The provisions of this § 73.2 adopted July 28, 1972, effective July 29, 1972, 2 Pa.B. 1435.