A charge under this section shall be filed within one hundred and eighty days after the alleged unlawful employment practice occurred and notice of the charge (including the date, place and circumstances of the alleged unlawful employment practice) shall be served upon the person against whom such charge is made within ten days thereafter, except that in a case of an unlawful employment practice with respect to which the person aggrieved has initially instituted proceedings with a State or local agency with authority to grant or seek relief from such practice or to institute criminal proceedings with respect thereto upon receiving notice thereof, such charge shall be filed by or on behalf of the person aggrieved within three hundred days after the alleged unlawful employment practice occurred, or within thirty days after receiving notice that the State or local agency has terminated the proceedings under the State or local law, whichever is earlier, and a copy of such charge shall be filed by the Commission with the State or local agency.

For purposes of this section, an unlawful employment practice occurs, with respect to a seniority system that has been adopted for an intentionally discriminatory purpose in violation of this subchapter (whether or not that discriminatory purpose is apparent on the face of the seniority provision), when the seniority system is adopted, when an individual becomes subject to the seniority system, or when a person aggrieved is injured by the application of the seniority system or provision of the system.

If within thirty days after a charge is filed with the Commission or within thirty days after expiration of any period of reference under subsection (c) or (d), the Commission has been unable to secure from the respondent a conciliation agreement acceptable to the Commission, the Commission may bring a civil action against any respondent not a government, governmental agency, or political subdivision named in the charge. In the case of a respondent which is a government, governmental agency, or political subdivision, if the Commission has been unable to secure from the respondent a conciliation agreement acceptable to the Commission, the Commission shall take no further action and shall refer the case to the Attorney General who may bring a civil action against such respondent in the appropriate United States district court. The person or persons aggrieved shall have the right to intervene in a civil action brought by the Commission or the Attorney General in a case involving a government, governmental agency, or political subdivision. If a charge filed with the Commission pursuant to subsection (b), is dismissed by the Commission, or if within one hundred and eighty days from the filing of such charge or the expiration of any period of reference under subsection (c) or (d), whichever is later, the Commission has not filed a civil action under this section or the Attorney General has not filed a civil action in a case involving a government, governmental agency, or political subdivision, or the Commission has not entered into a conciliation agreement to which the person aggrieved is a party, the Commission, or the Attorney General in a case involving a government, governmental agency, or political subdivision, shall so notify the person aggrieved and within ninety days after the giving of such notice a civil action may be brought against the respondent named in the charge (A) by the person claiming to be aggrieved or (B) if such charge was filed by a member of the Commission, by any person whom the charge alleges was aggrieved by the alleged unlawful employment practice. Upon application by the complainant and in such circumstances as the court may deem just, the court may appoint an attorney for such complainant and may authorize the commencement of the action without the payment of fees, costs, or security. Upon timely application, the court may, in its discretion, permit the Commission, or the Attorney General in a case involving a government, governmental agency, or political subdivision, to intervene in such civil action upon certification that the case is of general public importance. Upon request, the court may, in its discretion, stay further proceedings for not more than sixty days pending the termination of State or local proceedings described in subsection (c) or (d) of this section or further efforts of the Commission to obtain voluntary compliance.

Whenever a charge is filed with the Commission and the Commission concludes on the basis of a preliminary investigation that prompt judicial action is necessary to carry out the purposes of this Act, the Commission, or the Attorney General in a case involving a government, governmental agency, or political subdivision, may bring an action for appropriate temporary or preliminary relief pending final disposition of such charge. Any temporary restraining order or other order granting preliminary or temporary relief shall be issued in accordance with rule 65 of the Federal Rules of Civil Procedure. It shall be the duty of a court having jurisdiction over proceedings under this section to assign cases for hearing at the earliest practicable date and to cause such cases to be in every way expedited.

Each United States district court and each United States court of a place subject to the jurisdiction of the United States shall have jurisdiction of actions brought under this subchapter. Such an action may be brought in any judicial district in the State in which the unlawful employment practice is alleged to have been committed, in the judicial district in which the employment records relevant to such practice are maintained and administered, or in the judicial district in which the aggrieved person would have worked but for the alleged unlawful employment practice, but if the respondent is not found within any such district, such an action may be brought within the judicial district in which the respondent has his principal office. For purposes of sections 1404 and 1406 of title 28, the judicial district in which the respondent has his principal office shall in all cases be considered a district in which the action might have been brought.

It shall be the duty of the chief judge of the district (or in his absence, the acting chief judge) in which the case is pending immediately to designate a judge in such district to hear and determine the case. In the event that no judge in the district is available to hear and determine the case, the chief judge of the district, or the acting chief judge, as the case may be, shall certify this fact to the chief judge of the circuit (or in his absence, the acting chief judge) who shall then designate a district or circuit judge of the circuit to hear and determine the case.

It shall be the duty of the judge designated pursuant to this subsection to assign the case for hearing at the earliest practicable date and to cause the case to be in every way expedited. If such judge has not scheduled the case for trial within one hundred and twenty days after issue has been joined, that judge may appoint a master pursuant to rule 53 of the Federal Rules of Civil Procedure.

If the court finds that the respondent has intentionally engaged in or is intentionally engaging in an unlawful employment practice charged in the complaint, the court may enjoin the respondent from engaging in such unlawful employment practice, and order such affirmative action as may be appropriate, which may include, but is not limited to, reinstatement or hiring of employees, with or without back pay (payable by the employer, employment agency, or labor organization, as the case may be, responsible for the unlawful employment practice), or any other equitable relief as the court deems appropriate. Back pay liability shall not accrue from a date more than two years prior to the filing of a charge with the Commission. Interim earnings or amounts earnable with reasonable diligence by the person or persons discriminated against shall operate to reduce the back pay otherwise allowable.