N.Y. Civil Practice Law & Rules § 318: Designation of agent for service

Rule 318. Designation of agent for service. A person may be

designated by a natural person, corporation or partnership as an agent

for service in a writing, executed and acknowledged in the same manner

as a deed, with the consent of the agent endorsed thereon. The writing

shall be filed in the office of the clerk of the county in which the

principal to be served resides or has its principal office. The

designation shall remain in effect for three years from such filing

unless it has been revoked by the filing of a revocation, or by the

death, judicial declaration of incompetency or legal termination of the

agent or principal.