Quality Certification Systems?

[Jordi]

Dear friends!
I'm a student in a swiss hotel-school, and I need some information that that I'm not able to find for the moment.
I would like to know which are the wine quality cerftification systems used in New York State?
Also I will be pleased if you could notice me where I can find infomation about methods of Viticulture and vinification in NY state.
Thank you very much in advance.
Jordi.