STANDARDS PRESENTATION Page 7 of 19 TO
CALIFORNIA OCCUPATIONAL SAFETY AND HEALTH STANDARDS BOARD
TITLE 8 , DIVISION 1 , CHAPTER 4
( A ) Persons authorized by the employer and required by work duties to be present in the regulated area ;
( B ) Any person entering such an area as a designated representative of employees for the purpose of exercising the right to observe monitoring procedures under subsection ( d ); and
( C ) Any person authorized by the Occupational Safety and Health Act or regulations issued under it to be in a regulated area .
( 4 ) Provision of respirators . The employer shall provide each employee and the employee ' s designated representative entering a regulated area with an appropriate respirator in accordance with subsection ( hg ) and shall require each employee and the employee ' s designated representative to use the respirator while in a regulated area .
( f ) Methods of compliance .
( 1 ) Engineering and work practice controls . The employer shall use engineering and work practice controls to reduce and maintain employee exposure to respirable crystalline silica to or below the PEL , unless the employer can demonstrate that such controls are not feasible . Wherever such feasible engineering and work practice controls are not sufficient to reduce employee exposure to or below the PEL , the employer shall nonetheless use them to reduce employee exposure to the lowest feasible level and shall supplement them with the use of respiratory protection that complies with the requirements of subsection ( hg ). Subsection ( f )( 1 ) does not apply to high-exposure trigger tasks ; these tasks are covered by subsection ( f )( 2 ).
( 2 ) The employer shall use the following engineering controls and work practices for all high-exposure trigger tasks , regardless of employee exposures , exposure assessments , or objective data .
( A ) Engineering Controls . Effective wet methods , as defined in subsection ( b ), shall be used .
( B ) Housekeeping and Hygiene .
1 . Wastes , dusts , residues , debris , or other materials that are generated from highexposure trigger tasks or that otherwise contain or are contaminated with respirable crystalline silica shall be promptly and properly cleaned up and placed into leak-tight containers , bags , or equivalent . At a minimum , all such wastes , dusts , residues , debris , or other materials shall be cleaned up at the end of each shift or more frequently as needed to ensure there is no visible dust build-up in the workplace .
OSHSB-98 ( 2 / 98 )