29 C.F.R. § 1601.15 : Labor — REGULATIONS RELATING TO LABOR — EQUAL EMPLOYMENT OPPORTUNITY COMMISSION — PROCEDURAL REGULATIONS — PROCEDURE FOR THE PREVENTION OF UNLAWFUL EMPLOYMENT PRACTICES —INVESTIGATION OF A CHARGE — Investigative authority

(a) The investigation of a charge shall be made by the Commission, its investigators, or any other representative designated by the Commission. During the course of such investigation, the Commission may utilize the services of State and local agencies which are charged with the administration of fair employment practice laws or appropriate Federal agencies, and may utilize the information gathered by such authorities or agencies. As part of each investigation, the Commission will accept any statement of position or evidence with respect to the allegations of the charge which the person claiming to be aggrieved, the person making the charge on behalf of such person, if any, or the respondent wishes to submit.
(b) As part of the Commission's investigation, the Commission may require the person claiming to be aggrieved to provide a statement which includes:
(1) A statement of each specific harm that the person has suffered and the date on which each harm occurred;
(2) For each harm, a statement specifying the act, policy or practice which is alleged to be unlawful;
(3) For each act, policy, or practice alleged to have harmed the person claiming to be aggrieved, a statement of the facts which lead the person claiming to be aggrieved to believe that the act, policy or practice is discriminatory.
(c) The Commission may require a fact-finding conference with the parties prior to a determination on a charge of discrimination. The conference is primarily an investigative forum intended to define the issues, to determine which elements are undisputed, to resolve those issues that can be resolved and to ascertain whether there is a basis for negotiated settlement of the charge.
(d) The Commission's authority to investigate a charge is not limited to the procedures outlined in paragraphs (a), (b), and (c) of this section.

29 C.F.R. §1601.15