264(1)Where the tests referred to in subsection 263(1) indicate that paragraphs 263(1)(a) to (d) cannot be complied with, an employer shall, where practicable, purge the confined space to eliminate the hazards referred to in paragraphs 263(1)(a) to (d) and have the competent person re-conduct the tests required under subsection 263(1).

264(2)An employer is not required to purge a confined space more than once.

264(1)Where the tests referred to in subsection 263(1) indicate that paragraphs 263(1)(a) to (d) cannot be complied with, an employer shall, where practicable, purge the confined space to eliminate the hazards referred to in paragraphs 263(1)(a) to (d) and have the competent person re-conduct the tests required under subsection 263(1).

264(2)An employer is not required to purge a confined space more than once.