; and (B) so as to assure that no probation officers, individuals, organizations, or agencies shall bear excessive caseloads. (c) Delegation The Commission, by majority vote, and in accordance with rules and regulations— (1) may delegate to one or more Commissioners powers enumerated in subsection (b); (2) may delegate to hearing examiners any powers necessary to conduct hearings and proceedings, take sworn testimony, obtain and make a record of pertinent information, make findings of probable cause and issue subpoenas for witnesses or evidence in parole revocation proceedings, and recommend disposition of any matters enumerated in subsection (b), except that any such findings or recommendations shall be based upon the concurrence of not less than 2 hearing examiners; (3) may delegate authority to conduct hearings held under section 3643 to any officer or employee of the executive or judicial branch of Federal or State government; (4) may review, or may delegate to the National Appeals Board the power to review, any decision made under paragraph (1), which shall be reaffirmed, modified, or reversed not later than 30 days after the date the decision is rendered