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On December 14, 2023, the Occupational Safety and Health Standards Board approved Cal/OSHA's Emergency Temporary Standard (ETS) on Respirable Crystalline Silica (RCS). This ETS affects employees working in general industry under California Code of Regulation, Title 8, section 5204.
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.
1926.1153 Table 1—Specified Exposure Control Methods When Working With Materials Containing Crystalline Silica Equipment/task Engineering and work practice control methods Required respiratory protection and minimum assigned protection factor (APF) ≤ 4 hours/ shift >4 hours/ shift (vii) Handheld and stand-mounted
the engineering controls, work practices, and respiratory protection specified for the task on Table 1, unless the employer assesses and limits the exposure of the employee to respirable crystalline silica in accordance with paragraph (d) of this section.
To assist employers, Cal/OSHA has produced two different model plans: one for construction and one for general industry. Employers may download and customize the model plan applicable to their operations.
On December 14, 2023 the Occupational Safety and Health Standards Board approved Cal/OSHA’s emergency temporary standard (ETS) on respirable crystalline silica (RCS).
methods on Table 1 must: • Determine the amount of silica that workers are exposed to if it is, or may reasonably be expected to be, at or above the action level of 25 μg/m3 (micrograms of silica per cubic meter of air), averaged over an 8-hour day; • Protect workers from respirable crystalline silica
