; or (B) the Select Committee on Ethics of the Senate, in the case of a violation involving a Senator. (d) Recommendation of mediation At any time during the investigation of a claim under this section, the General Counsel may make a recommendation that the covered employee and the employing office pursue mediation under section 404 with respect to the claim. (e) Deadline for concluding investigation The General Counsel shall conclude the investigation of a claim under this subsection, and transmit the report on the results of the investigation, not later than 90 days after the claim is filed under section 402, except that the General Counsel may (upon notice to the parties to the investigation) use an additional period of not to exceed 30 days to conclude the investigation. . (b) Conforming amendments relating to description of procedures available for consideration of alleged violations (1) In general Section 401(a)(2) of such Act ( 2 U.S.C. 1401(a)(2) ), as amended by section 101(a) of the Congressional Accountability Act of 1995 Reform Act ( Public Law 115–397 ; 132 Stat. 5298), is amended to read as follows: (2) an investigation of the claim, to be conducted by the General Counsel as provided in section 403; and . (2) Conditions for availability of formal hearing Section 401(a)(4) of such Act ( 2 U.S.C. 1401(a)(4) ), as amended by section 101(a) of the Congressional Accountability Act of 1995 Reform Act ( Public Law 115–397 ; 132 Stat. 5298), is amended to read as follows: (4) a formal hearing as provided in section 405, subject to Board review as provided in section 406, and judicial review in the United States Court of Appeals for the Federal Circuit as provided in section 407, but only if, pursuant to an investigation conducted by the General Counsel as provided in section 403, the General Counsel finds either— (A) that there is reasonable cause to believe that the employing office involved committed a violation of part A of title II as alleged in the covered employee’s claim