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CFR > Title 46 - Shipping > CHAPTER I—COAST GUARD, DEPARTMENT OF HOMELAND SECURITY > SUBCHAPTER V—MARINE OCCUPATIONAL SAFETY AND HEALTH STANDARDS (parts 197 to 198) > PART 197—GENERAL PROVISIONS > SUBPART C—Benzene (§197.501 to §197.580) > 197.520—Performance standard.
197.520—Performance standard.
No person may be subjected to a personal exposure in excess of the permissible exposure limits unless respiratory protection is used.