"The mission of the Occupational Safety and Health Review Commission is to provide fair and timely adjudication of workplace safety and health disputes between the Department of Labor and employers" (OSAHRC web site). The Commission was established in 1970.
Government Documents has a large collection of OSAHRC publications, including the following series:
Decisions and orders (Y 3.Oc 1:9)
OSAHRC reports (Y 3.Oc 1:10)
In addition, we have general publications and Congressional hearings and reports relating to OSAHRC.