Hello, my name is XXXXX XXXXX I am happy to help you today
Yes, you do need to change your plate and registration to new york
Technically you have 30 days, but that is not a hard deadline - if you have been there longer than 30 days though, you should plan to get in as soon as possible to get it registered there
You will need to actually visit the DMV there to do this process - it cannot be done online - they need to do a VIN check of the vehicle during the process and that has to be done in person.
If you need further followup, just reply back
Please be sure to hit ACCEPT as that is the only way I receive credit for my help today. Have a wonderful week!