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DOL/OSHA RIN: 1218-AB45 Publication ID: Spring 2002 
Title: Occupational Exposure to Hexavalent Chromium (Preventing Occupational Illness: Chromium) 
Abstract: In July 1993, the Occupational Safety and Health Administration (OSHA) was petitioned for an emergency temporary standard (ETS) to reduce the permissible exposure limit (PEL) for occupational exposures to hexavalent chromium. The Oil, Chemical, and Atomic Workers International Union (OCAW) and Public Citizen's Health Research Group (HRG) petitioned OSHA to promulgate an ETS to lower the PEL for hexavalent chromium (CrVI) compounds to 0.5 micrograms per cubic meter of air (ug/m3) as an eight-hour, time-weighted average (TWA). This would represent a significant reduction in the current PEL. The current PEL in general industry is found in 29 CFR 1910.1000 Table Z and is a ceiling value of 100 ug/m3, measured as chromium (VI) and reported as chromic anhydride (CrO3). The amount of chromium (VI) in the anhydride compound equates to a PEL of 52 ug/m3. This ceiling limit applies to all forms of hexavalent chromium (VI), including chromic acid and chromates, lead chromate, and zinc chromate. The current PEL for hexavalent chromium (VI) in the construction industry is 100 ug/m3 as a TWA PEL, which also equates to a PEL of 52 ug/m3. After reviewing the petition, OSHA denied the request for an ETS and initiated a section 6(b)(5) rulemaking. The major illnesses associated with occupational exposure to hexavalent chromium are lung cancer and dermatoses. OSHA estimates that approximately one million workers are exposed to hexavalent chromium on a regular basis in all industries. The major uses of hexavalent chromium are: as a structural and anti-corrosive element in the production of stainless steel, ferrochromium, iron and steel, and in electroplating, welding and painting. 
Agency: Department of Labor(DOL)  Priority: Economically Significant 
RIN Status: Previously published in the Unified Agenda Agenda Stage of Rulemaking: Prerule Stage 
Major: Yes  Unfunded Mandates: Private Sector 
EO 13771 Designation: uncollected 
CFR Citation: 29 CFR 1910   
Legal Authority: 29 USC 655(b)    29 USC 657   
Legal Deadline:  None
Timetable:
Action Date FR Cite
Request for Information  08/00/2002    
Regulatory Flexibility Analysis Required: Undetermined  Government Levels Affected: Undetermined 
Federalism: No 
Included in the Regulatory Plan: No 
Agency Contact:
Steven F. Witt
Director, Directorate of Cooperative and State Programs
Department of Labor
200 Constitution Avenue NW., Room N-3700, FP Building,
Washington, DC 20210
Phone:202 693-2200
Fax:202 693-1671
Email: witt.steven@dol.gov