N.Y.C. Admin. Code § 17-367: § 17-367 Record keeping.

Every boarding kennel, business or establishment shall maintain and make available for inspection records for each dog utilizing such facility for a period of twelve (12) months from the last day of such utilization indicating: the owner's name, address, telephone number and emergency contact; duration of stay; services provided; and proof of vaccinations or veterinarian's statements that vaccination is contraindicated.