N.Y. Environmental Conservation Law § 34-0108
3. The rules and regulations adopted by the commissioner pursuant to sections 34-0105, 34-0106 and 34-0107 of this article shall establish minimum standards and criteria to be applied to activities or development in erosion hazard areas. Such standards and criteria shall be used to deny, condition or modify a proposed action, if necessary, to implement the policies and purposes of this article. Standards and criteria promulgated pursuant to this section shall include but shall not be limited to:
4. The rules and regulations shall provide procedure pursuant to which the strict application of their standards and criteria may be varied or modified in cases where practical difficulty or unnecessary hardship is shown, provided that in granting any such variance, the following criteria are met: