Is Romex Wire Legal In New York City?

Hi,

I am buying a new house in brooklyn New York. When the house was being built I notice they were using romex wire instead of bx.
The home is a 3 family.
Is it legal to use these wires?

Yes, Romex is allowed in NYC in one or two family homes 3 stories or less.

Romex is covered in the National Electric Code Article 334, which NYC refers to.

See:
http://www.nyc.gov/html/dob/download...ll49of2006.pdf