The distinction made by the Board between the two kinds of cases is therefore arbitrary and unreasonable; (5) 'Demurrage ', being a charge for wilful failure to remove the goods within the free period can be believed only if the failure to remove the goods is due to the fault or negligence of the importer or his agent; (6) Having regard to this well accepted meaning of the word 'demurrage ', the authority give to the Board by section 42 of the Act to frame the scale of rates can be exercised only for the purpose of levying charges where the importer was not prevented by any lawful authority from clearing the goods from the transit area and he had defaulted or was negligent in clearing the goods; (7) Since Rule 13(b) empowers the Board to charge demurrage even when the goods are detained for no fault or negligence of the importer or his agent, it is beyond the authority conferred by section 42 and is therefore void; (8) All the same, if two views are reasonably possible" a construction which favours the validity of a rule or statute should be preferred to that which renders it void Therefore, under the scale of charges for demurrage provided in Chapter IV, the appellants can levy demurrage only in cases where the delay in clearing the goods is due to the fault or negligence of the importer or his agent.