; (B) shall not be considered to be annual or vacation leave for purposes of section 5551 or 5552 or for any other purpose; and (C) if not used by the employee before the end of the 12-month period (as referred to in subsection (a)(1)) to which it relates, shall not accumulate for any subsequent use. (6) The Director of the Office of Personnel Management— (A) may promulgate regulations to increase the amount of paid parental leave available to an employee under paragraph (3)(A), to a total of not more than 16 administrative workweeks, based on the consideration of— (i) the benefits provided to the Federal Government of offering increased paid parental leave, including enhanced recruitment and retention of employees; (ii) the cost to the Federal Government of increasing the amount of paid parental leave that is available to employees; (iii) trends in the private sector and in State and local governments with respect to offering paid parental leave; (iv) the Federal Government’s role as a model employer; (v) the impact of increased paid parental leave on lower-income and economically disadvantaged employees and their children; and (vi) such other factors as the Director considers necessary