N.Y. Elec. Law § 2-122
Delegates and alternates to a national convention of a party shall be elected from congressional districts, or partly from the state at large and partly from congressional districts, as the rules of the state committee may provide. Such delegates and alternates from the state at large shall be elected by the state committee or by a state convention of the party, as the rules of the state committee shall prescribe. If the rules of a national party provide for representation by gender among delegates elected from districts, such district delegates shall be elected separately by gender. District delegates and alternates to national party conventions and delegates, and alternates, if any, to such a state convention shall be elected at a primary. All delegates and alternates to a national party convention shall be enrolled members of such party. When any such rule provides for representation by gender, the designating petitions and primary ballots shall list candidates for such party positions separately by gender marker. In providing for such representation, the party shall establish rules that provide for the ability of individuals who do not exclusively identify as a binary gender to serve as delegates and which respect individuals' gender identity.
N.Y. Elec. Law § 2-122