authority: Sections 19 and 24 of the Occupational Safety and Health Act of 1970 (84 Stat. 1609, 1614;
29 U.S.C. 668,
673,
5.S.C. 553, Secretary of Labor's Order No. 1-90 (55 FR 9033), and Executive Order 12196
source: 45 FR 69798, Oct. 21, 1980, unless otherwise noted.