WAC 296-62-08013
Methods of compliance. (1) Engineering
and work practice controls.
(a) Except as permitted in (c) of this subsection, the
employer shall use engineering and work practice controls to
reduce and maintain employee exposure to chromium (VI) to or
below the PEL unless the employer can demonstrate that such
controls are not feasible. Wherever feasible engineering and
work practice controls are not sufficient to reduce employee
exposure to or below the PEL, the employer shall use them to
reduce employee exposure to the lowest levels achievable, and
shall supplement them by the use of respiratory protection
that complies with the requirements of WAC 296-62-08015.
Exemption:
This (b) does not apply to construction, shipyards, marine terminals and longshoring.
(b) Where painting of aircraft or large aircraft parts is
performed in the aerospace industry, the employer shall use
engineering and work practice controls to reduce and maintain
employee exposure to chromium (VI) to or below 25 (mu)g/m\3\
unless the employer can demonstrate that such controls are not
feasible. The employer shall supplement such engineering and
work practice controls with the use of respiratory protection
that complies with the requirements of WAC 296-62-08015 to
achieve the PEL.
(c) Where the employer can demonstrate that a process or
task does not result in any employee exposure to chromium (VI)
above the PEL for thirty or more days per year (twelve
consecutive months), the requirement to implement engineering
and work practice controls to achieve the PEL does not apply
to that process or task.
(2) Prohibition of rotation. The employer shall not
rotate employees to different jobs to achieve compliance with
the PEL.