No weight or measure which is required by or under this Act to be verified and stamped shall be sold, used or kept for use unless it has been verified and stamped.

Manufacture, etc., to maintain recordrds and registers 20. (1) Every maker, manufacturer, repairer or dealer and every person using any weight or measure in any transaction or for industrial production or for protection shall maintain such records and registers as may be prescribed, and, if required so to do by an Inspector, shall produce such records and registers before the inspector for inspection.

1. (2) Notwithstanding anything contained in sub-section (1), if the Controller is of opinion that having regard to the nature or volume of the business carried on by any maker, manufacturer, dealer, repairer or user of any weight or measure, it is necessary so to do, he may, by order, exempt such maker, manufacturer, dealer, repairer or user from the operation of that sub-section.