N.Y. Civil Service Law § 61
3. Notification to eligible candidates. Persons on an eligible list who are certified pursuant to section sixty of this chapter and are considered and not selected for appointment or promotion pursuant to this section shall, whenever another candidate is appointed or promoted, be given or sent written notice by the appointing authority of such non-selection. In a city containing more than one county, persons on an eligible list who are made ineligible for further certification pursuant to a rule of the appropriate municipal commission shall be given or sent written notice of such ineligibility. Sending written notice by ordinary mail to the last address of record shall be adequate to comply with the requirements of this subdivision. * 4. Appointment and promotion letter. (a) An appointing authority who extends an offer of appointment or promotion to a position in the classified service to any person shall provide such person with an appointment letter within fourteen days of the effective date of such appointment. Such appointment letter shall include:
(viii) if the offer of appointment is to a trainee title:
(x) information regarding employee benefits and links to applicable websites, including, but not limited to: