When an agency receives information obtained by EEOC, the agency shall observe the confidentiality requirements of sections 706(b) and 709(e) of title VII as would EEOC, except in cases where the agency receives the same information from a source independent of EEOC or has referred a joint complaint to EEOC under this regulation. In such cases, the agency may use independent source information or information obtained by EEOC under the agency's investigative authority in a subsequent title VI, title IX or revenue sharing act enforcement proceeding. Agency questions concerning confidentiality shall be directed to the Associate Legal Counsel for Legal Services, Office of Legal Counsel of EEOC.