N.Y. Comp. Codes R. & Regs. tit. 1, § 319.281
(a) Bockwurst is an uncured, comminuted meat food product which may or may not be cooked. It contains meat, milk or water or a combination thereof, eggs, vegetables, and any of the optional ingredients listed in subdivision (b) of this section; and is prepared in accordance with the provisions of paragraphs (1), (2), (3), and (4) of this subdivision.
(b) Bockwurst may contain one or more of the following optional ingredients: