However, in a case where a member is discontinued from service subsequent to the accident, either voluntarily or involuntarily, and provided that the member meets the requirements of paragraph one of this subdivision, application may be made either (a) by a vested member incapacitated as the result of a qualifying World Trade Center condition as defined in section two of this article at any time, or (b) not later than two years after the member is first discontinued from service.
N.Y. Retire. and Soc. Sec. Law § 63