N.Y. Comp. Codes R. & Regs. tit. 1, § 319.145
(a) Italian sausage products are uncured, unsmoked sausages containing at least 85 percent meat, or combination of meat and fat, with the total fat content constituting not more than 35 percent of the finished product. Such products shall be prepared in accordance with the provisions of paragraph (1), (2) or (3) of this subdivision, and shall contain salt, pepper, and either fennel or anise, or a combination of fennel and anise. Such products may contain any or all of the optional ingredients listed in subdivision (b) of this section.
(b) Optional ingredients permitted in Italian sausage products include: