Page 62 - Safety Memo

Back To TABLE
B. Cal/OSHA administrative requirements are as follows: F. Exposure assessments and monitoring are required
as follows:
1. Registration and district notification if disturbing 100
sq. ft. or more of manufactured construction materials 1. Initial exposure assessment must be made by all
containing more than 1/10 of 1% of asbestos-containing employers subject to 1529 before or at the onset of the
construction material (ACCM). 341.6(a) project. 1529(f)(2)
2. Carcinogen notification with exposures in excess of 2. Daily exposure monitoring of employees must be
permissible exposure limits (PELs). conducted by all employers disturbing materials that
contain more than 1% asbestos in Class I and II work.
3. The employer shall notify affected employees of the 1529(f)(3)
monitoring results of asbestos within 5 working days
following receipt of monitoring results. 1529(f)(5)(A) 3. All employers must monitor daily representative exposure
of employees performing Class I and II work.
4. DOSH certification is required for all persons performing
duties of an asbestos consultant or technician. 341.15(a) Exceptions 1529(f)(3):
5. “Asbestos consultant” means any person who contracts No monitoring required when:
to provide professional health and safety services relating
to asbestos. 1529(q)(1) » The employer has made a negative exposure
assessment for the entire operation.
C. Training is required for all employees engaged in Class
I through IV work and all work in which they are likely to » Employees are equipped with supplied-air respirators
be exposed in excess of the PELs. The training must be (SARs) operated in the pressure demand mode, or
provided: other positive pressure mode respirator. However,
employees performing Class I work using certain
1. At the employer’s expense. control methods shall be monitored daily even if they
are equipped with SARs.
2. Before or at the time of initial assignment.
4. Periodic exposure monitoring of employees must be
3. Annually after initial training.
conducted when disturbing asbestos-containing materials
4. In accordance with 1529(k)(9). (ACMs) in operations involving other than Class I and II
work during which the PELs might be exceeded. 1529(f)(3)
D. Permissible exposure limits (PELs): The employer must ensure
that employee exposures do not exceed: 1529(c) G. Respirator protection requirements are specific to asbestos-
related activities and exposures as outlined in 1529(h):
1. Eight-hour time-weighted average of 0.1 fibers/cc.
1. The employer must provide appropriate respirators to
2. Thirty-minute excursion limit of 1 fiber/cc. 1529(c) employees; however, employers shall not use filtering
E. Multi-employer work sites are regulated under 1529: facepiece respirators for use against asbestos fibers.
1529(h)(3)
1. The general contractor on the project must exercise
general supervisory authority. 1529(d) 2. The appropriate respirator must be selected from Table 1
of 5144(d)(3)(A)(1) and 1529(h).
2. An employer doing work involving asbestos must notify
other employers at the site. 1529(d) 3. The employer must provide HEPA filters for powered and
non-powered air-purifying respirators. 1529(h)(3)(B)
3. All employers on site must ensure that their own
employees are not exposed to asbestos fibers because of 4. A written respiratory protection program must be
a breach in containment or control methods used by the implemented in accordance with 5144(c), 1529(h)(2).
creating employer. 1529(d) H. Methods of compliance and work practices are noted below:
1. The wet method must be used unless the employer can
demonstrate that it is not feasible. 1529(g)(1)

12 Cal/OSHA Pocket Guide for the Construction Industry | June 2015 Cal/OSHA Pocket Guide for the Construction Industry | June 2015 13