PART XXIX UNDERGROUND OPERATIONS — Tests and reports of emergency warning system
542
(1) At least once in each year, with each shift, an employer at an underground place of employment shall
542(a)
make a test of the effectiveness of the procedures and emergency warning system or systems referred to in section 541 ; and immediately make a change necessary to make the procedure or system effective and re-test the effectiveness of the procedure and the system; and
542(b)
submit a report within 7 days after the test to the occupational health and safety committee, the worker health and safety representative or the workplace health and safety designate, as applicable. submit a report within 7 days of the re-test to the occupational health and safety committee, the worker health and safety representative or the workplace health and safety designate, as applicable.
542(2)
Where a test shows that a procedure or emergency warning system is ineffective, the employer shall
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