United States Court of Appeals
                       For the First Circuit


No. 17-1537

                 A.C. CASTLE CONSTRUCTION CO., INC.

                            Petitioner,

                                 v.

              R. ALEXANDER ACOSTA, Secretary of Labor;
                      U.S. DEPARTMENT OF LABOR,

                            Respondents.


               PETITION FOR REVIEW OF AN ORDER OF
      THE OCCUPATIONAL SAFETY AND HEALTH REVIEW COMMISSION


                               Before

                   Torruella, Lipez, and Kayatta,
                           Circuit Judges.


     James F. Laboe, with whom Orr & Reno, P.A. was on brief, for
petitioner.
     Amy S. Tryon, Senior Attorney, U.S. Department of Labor, with
whom Nicholas C. Geale, Acting Solicitor of Labor, Ann S.
Rosenthal, Associate Solicitor for Occupational Safety and Health,
and Charles F. James, Counsel for Appellate Litigation, were on
brief, for respondents.


                          February 7, 2018
            KAYATTA, Circuit Judge.               General contractor A.C. Castle

Construction Co., Inc. appeals fines imposed by the Occupational

Safety and Health Admini