28 CFR §42.606

1. (a)A complaint of employment discrimination filed with an agency, which is transferred or referred to EEOC under this regulation, shall be deemed a charge received by EEOC. For all purposes under title VII and the Equal Pay Act, the date such a complaint was received by an agency shall be deemed the date it was received by EEOC.
2. (b)When EEOC investigates a joint complaint it shall, where appropriate, seek sufficient information to allow the referring agency to determine whether the alleged employment discrimination is in a program or activity that receives Federal financial assistance and/or whether the alleged employment discrimination causes discrimination with respect to beneficiaries or potential beneficiaries of the assisted program.
3. (c)Upon referral of a joint complaint alleging a pattern or practice of employment discrimination, EEOC generally will limit its investigation to the allegation(s) which directly affect the complainant.
4. (d)If EEOC, in the course of an investigation of a joint complaint, is unable to obtain information from a recipient through voluntary means, EEOC shall consult with the referring agency to determine an appropriate course of action.
5. (e)If EEOC agrees to defer its investigation of a complaint of employment discrimination pending an agency investigation of the complaint, then EEOC shall give due weight to the agency's determination concerning the complaint.