Civil actions by the Attorney General

(a) In general Whenever the Attorney General receives a complaint in writing signed by a parent (including a legal guardian) or a group of parents (including legal guardians) to the effect that a program is in violation of the prohibition under section 101, and the Attorney General believes the complaint is meritorious, the Attorney General is authorized, to institute for or in the name of the United States a civil action in any appropriate district court of the United States against such parties and for such relief as may be appropriate, and such court shall have and shall exercise jurisdiction of proceedings instituted pursuant to this section. (b) Notice The Attorney General may not institute a civil action under this section unless the Attorney General— (1) provides notice of the complaint by a parent or group of parents described in subsection (a) to the appropriate program; and (2) certifies that such program has had a reasonable time to adjust the conditions alleged in such complaint. (c) Additional defendants The Attorney General may implead as defendants such additional parties as are or become necessary to the grant of effective relief under this section.