Respirable-Crystalline-Silica-Emergency-Regs December 2023 | Page 10

STANDARDS PRESENTATION Page 10 of 19 TO
CALIFORNIA OCCUPATIONAL SAFETY AND HEALTH STANDARDS BOARD
TITLE 8 , DIVISION 1 , CHAPTER 4
( 2 ) Failure to comply with any of the following shall be considered an imminent hazard and may be subject to an Order Prohibiting Use from the Division :
( A ) Subsection ( f )( 2 )( D ) Prohibitions ; ( B ) Subsection ( h ) Respiratory protection ; ( C ) Subsection ( l ) Reporting of silicosis ; and ( D ) Section 5203 Carcinogen Report of Use Requirements .
( hg ) Respiratory protection .
( 1 ) General . Where respiratory protection is required by this section , the employer must provide each employee an appropriate respirator that complies with the requirements of this subsection and Section 5144 . Respiratory protection is required :
( A ) Where exposures exceed the PEL during periods necessary to install or implement feasible engineering and work practice controls ;
( B ) Where exposures exceed the PEL during tasks , such as certain maintenance and repair tasks , for which engineering , and work practice controls are not feasible ;
( C ) During tasks for which an employer has implemented all feasible engineering and work practice controls and such controls are not sufficient to reduce exposures to or below the PEL ; and
( D ) During periods when the employee is in a regulated area .
( 2 ) Subsection ( h )( 1 ) does not apply to high-exposure trigger tasks ; these tasks are covered by subsection ( h )( 3 ).
( 3 ) When employees perform high-exposure trigger tasks or work within a regulated area where high-risk exposure tasks occur , the employer shall provide , and shall ensure that employees properly use , the following respiratory protection , in accordance with Section 5144 :
( A ) A full face , tight-fitting powered-air purifying respirator ( PAPR ) or a respirator providing equal or greater protection equipped with a HEPA , N100 , R100 , or P100 filter . For artificial stone , a HEPA , N100 , R100 , or P100 filter and organic vapor cartridge shall be used .
EXCEPTION 1 : The organic vapor cartridge may be omitted where the employer demonstrates that there are no exposures over the PEL established in Section 5155
OSHSB-98 ( 2 / 98 )