Section 49

Where the Chief Inspector is satisfied in respect of any particular factory or part thereof or any particular process that any requirement of any regulations made under this Act need not, having regard to all the circumstances, be complied with or compliance with such requirement is not reasonably practicable, he may by certificate in writing, which he may after such notice as he may consider reasonable in the circumstances revoke, exempt the factory or part or process from complying with the requirement subject to such conditions as he may specify in the said certificate.