N.Y. Vehicle & Traffic Law § 235
1-a.
(2) Whenever a person has been issued a notice of violation for a parking violation and has not responded in the manner described in the notice, a city shall give the owner a second notice of the violation by regular first class mail: (i) within forty days of issuance of the first notice of violation for a parking violation where the vehicle is a vehicle registered in this state; or (ii) within forty days of the receipt by such city of the name and address of the owner of the vehicle where the vehicle is a vehicle registered in any other state. Such second notice shall include, but not be limited to, the following information:
(2) Failure to respond to a notice of violation for a parking violation by the initial response date may result in the liability for a penalty in an amount of the fine indicated on the notice of violation for a parking violation; where a city has given a second notice pursuant to paragraph a of this subdivision, the following schedule of additional penalties may apply: