In the case of one parent families with dependent children:
(i) In the case of one parent families with dependent children:
(a)for Federal fiscal years 1997 and 1998: 20 hours;#
(a) for Federal fiscal years 1997 and 1998: 20 hours;
(b)for Federal fiscal year 1999: 25 hours;#
(b) for Federal fiscal year 1999: 25 hours;
(c)for Federal fiscal years 2000 and thereafter: 30 hours.#
(c) for Federal fiscal years 2000 and thereafter: 30 hours.