Varietal types means raisins generally recognized as possessing characteristics differing from other raisins in a degree sufficient to make necessary or desirable separate identification and classification. Varietal types are the following: Natural (sun-dried) Seedless, Dipped Seedless, Golden Seedless, Muscats (including other raisins with seeds), Sultana, Zante Currant, Monukka, and Oleate and Related Seedless: Provided, That the Committee may, subject to approval of the Secretary, change this list of varietal types.