(1)         In these regulations, the processing of a CSS is "controlled" if—

            (a)         control measures to eliminate or minimise risks arising from the processing are implemented so far as is reasonably practicable; and

            (b)         at least 1 of the following measures are used during the processing:

                  (i)         the isolation of a person from dust exposure;

                  (ii)         a fully enclosed operator cabin fitted with a high efficiency air filtration system;

                  (iii)         an effective wet dust suppression method;

                  (iv)         an effective on-tool extraction system;

                  (v)         an effective local exhaust ventilation system; and

            (c)         a person still at risk of being exposed to respirable crystalline silica after 1 or more of the measures in paragraph (b) are used—

                  (i)         is provided with respiratory protective equipment; and

                  (ii)         wears the respiratory protective equipment while the work is carried out.

Note—

See also regulation 351.

        (2)         Despite subregulation (1), if the measures in subregulation (1)(b) are not reasonably practicable, the processing of a CSS is controlled if a person who is at risk of being exposed to respirable crystalline silica during the processing—

            (a)         is provided with respiratory protective equipment; and

            (b)         wears the respiratory protective equipment while the work is carried out.

        (3)         In this regulation—

"respiratory protective equipment" means personal protective equipment that—

            (a)         is designed to prevent a person wearing the equipment from inhaling airborne contaminants; and

            (b)         complies with—

                  (i)         AS/NZS 1716:2012 (Respiratory protective devices) ; and

                  (ii)         AS/NZS 1715:2009 (Selection, use and maintenance of respiratory protective equipment) .

Note—

Regulations 44, 45 and 46 apply to the provision and use of personal protective equipment, including the respiratory protective equipment provided under subregulation (1)(c) and (2).