The appointing authority shall establish and publish, subject to the approval of the Department of Civil Service, rules and schedules establishing penalties for tardiness. Such penalties shall not preclude disciplinary action in cases of excessive tardiness. In the event of public transportation difficulties, strikes, sever storms or floods, or similar uncontrollable conditions affecting a group of employees, tardiness may be excused by the appointing authority.
N.Y. Comp. Codes R. & Regs. Tit. 4 § 20.3