A completed investigation may result in a determination that there is no reasonable cause to believe that the respondent has engaged in an unlawful employment practice as alleged in the perfected complaint. If after the review, the CRD director determines that no reasonable cause exists, the CRD director shall issue a letter of no cause determination. The no cause determination letter shall be sent by mail, or electronic communication upon agreement of the person or entity, to the complainant, respondent, and any agency as required by law and shall contain the CRD director's finding that the evidence does not support the perfected complaint.