What if I  indicate the driving types NI Non-excepted Interstate or NA Non-excepted Intrastate on my renewal?
Then, you have to provide a legible copy of your current USDOT Medical Examiner's Certificate to DMV if it is not already on file. Please, see Federal Requirements for Commercial Driver License (CDL) Applicants MV-44.5 to help you determine your driving type
And what if I have an endorsement of H or X?
You have to pass the hazardous materials knowledge test at a DMV office within 2 years before your renewal and pay a fee of $5 for the test. Residents of the following counties must pay a supplemental Metropolitan Commuter Transportation District (MCTD) fee : Bronx, Kings Brooklyn, New York Manhattan, Queens, Richmond Staten Island; Dutchess, Nassau, Orange, Putnam, Rockland, Suffolk and Westchester. The MCTD fee is $1.00 for every 6 months the permit or driver license will be in effect.