California Code
CHAPTER 4 - Poultry and Rabbit Meat Classes
Section 25856.

25856. The following are the various classes of geese:

(a) “Young goose” means a goose of either sex which is tender meated, and has a windpipe that is easily dented.

(b) “Mature goose” or “old goose” means a goose of either sex which has toughened flesh and a hardened windpipe.

(Enacted by Stats. 1967, Ch. 15.)