At New York University, all research involving human subjects (funded or not funded) must be reviewed and approved by the University's Institutional Review Board (IRB) before being carried out.
The UCAIHS serves as NYU's IRB for the the Washington Square units of the University. This site can help you:
The UCAIHS is authorized to review and approve research involving human subjects through an agreement with the U.S. Department of Health and Human Services, Office for Human Research Protections, called a Federal Wide Assurance.
See the section on How to Apply to get started with the application process, including whether your proposed work requires UCAIHS review and approval.