; or (iii) except as provided in paragraph (4)(C), terminate the affected employees with not less than 90 days’ notice. (4) Temporary mass layoffs or site closings resulting in terminations (A) In general In the case the period of a temporary mass layoff or temporary site closing, including any extensions of such layoff or closing, culminates in the employer terminating an affected employee with less than 90 days’ notice in violation of paragraph (2)(C)(iii) or paragraph (3)(C)(iii), the employer shall, except as provided in subparagraph (C), be liable to such employee for back pay and benefits as described in section 5 for each day, for up to a maximum of 90 days, the employer did not provide notice and short-time compensation as required under this subsection. (B) No reductions Notwithstanding section 5(a)(2), no amount for which an employer is liable under subparagraph (A) shall be reduced by any payment received by an employee for short-time compensation during the period of the violation. (C) Exceptions An employer may terminate an affected employee under paragraph (2)(C)(iii) or (3)(C)(iii) with less than 90-days' notice as described in such paragraph if the employer can demonstrate the existence of a circumstance described in paragraph (1) or (2) of subsection (c). The applicable requirements under paragraph (3) of such subsection shall apply with respect to any employer relying on such a circumstance in providing less than 90-days' notice under paragraph (2)(C)(iii) or (3)(C)(iii). (e) Determinations with respect to employment loss (1) Multiple groups For purposes of this section, in determining whether a site closing or mass layoff at a single site of employment has occurred or will occur, employment losses for 2 or more groups at the single site of employment, each of which is less than the minimum number of employees specified in paragraph (4) or (8) of section 2(a) but which in the aggregate exceed that minimum number, and which occur within any 90-day period, shall be considered to be a site closing