The regulations deposited in respect of a certification trade mark may, on the application of the registered proprietor, be altered by the Registrar, with the consent of the Board of Trade.

The Board of Trade may cause an application for their consent to be advertised in any case where it appears to the Board that it is expedient so to do, and, where the Board cause an application to be advertised, if within the prescribed time from the date of the advertisement any person gives notice to the Board of opposition to the application, the Board shall not decide the matter without giving the parties an opportunity of being heard.