Sec. 501 Health Hazard Evaluations by the National Institute for Occupational Safety and Health
Section 20(a)(6) (29 U.S.C. 669(a)(6)) is amended by striking the second sentence and inserting the following: “The Secretary shall determine following a written request by any employer, authorized representative of current or former employees, physician, other Federal agency, or State or local health department, specifying with reasonable particularity the grounds on which the request is made, whether any substance normally found in the place of employment has potentially toxic effects in such concentrations as used or found or whether any physical agents, equipment, or working condition found or used has potentially hazardous effects; and shall submit such determination both to employers and affected employees as soon as possible.”.