It looks like you just have to make sure you have exterior mirrors just like the rest of us.
New York..........Consolidated Laws of New York
Sorry can't link directly to the grit of the matter.
So follow this path, Clink on "Laws of New York" at bottom, then under Consolidated Laws click on "VAT Vehicle & Traffic", then "Title 3 - SAFETY RESPONSIBILITY, Article 9 - (375 - 383) EQUIPMENT OF MOTOR VEHICLES AND MOTORCYCLES" has what you need to know. The Site also has a search form