; or (ii) shall investigate the complaint and, upon completion of such investigation, submit a report of the findings of the investigation to the employee, applicant, former employee, or personal services contractor who submitted the complaint, and the contractor, subcontractor, grantee, or subgrantee concerned, and the head of the agency that awarded the contract or grant not later than 180 days after receiving the complaint. (B) Extension of time If the Inspector General is unable to complete an investigation in time to submit a determination within the 180-day period specified in subparagraph (A)(ii) and the employee, applicant, former employee, or personal services contractor who submitted the complaint agrees to an extension of time, the Inspector General shall submit a report under subparagraph (A)(ii) within such additional period of time, up to 180 days, as shall be agreed upon between the Inspector General and the individual submitting the complaint. (3) Burdens of proof Consistent with Executive orders protecting information specifically required by Executive order to be kept classified in the interest of national defense or the conduct of foreign affairs, the legal burdens of proof specified in section 1221(e) of title 5, United States Code, shall, to the greatest extent possible, be controlling for the purposes of any investigation conducted by an Inspector General, or a decision by the head of an agency to determine whether a reprisal prohibited by subsection (b) has occurred. (4) Submission to Congress (A) In general If the employee, applicant, former employee, or personal services contractor wishes to submit to Congress their complaint submitted under paragraph (1) or if such a complaint is an urgent concern, the Inspector General who receives the complaint shall, within 7 calendar days of receipt of the complaint, forward such transmittal to the congressional intelligence committees, together with any comments the Inspector General considers appropriate. (B) Submission by the employee If the