29 CFR § 1955.44 - Final decision.
(a) After review of any exceptions, together with the record references and authorities cited in support thereof, the Secretary shall issue a final decision ruling upon each exception and objection filed. The final decision may affirm, modify, or set aside in whole or in part the findings, conclusions, and the rule or order contained in the decision of the administrative law judge. The final decision shall also include reference to any material fact based on official notice.
(b) The Secretary's final decision shall be served upon all the parties and shall become final upon the 30th day after service thereof unless the Secretary grants a stay pending judicial review.