(1) An applicant for registration of a trade mark may apply to the Commissioner for a class or classes to be added after the application has been filed.
(2) The Commissioner may allow the addition of a class if—
(a) the application for addition is made within 1 month after the application for registration is filed; and
(b) the application is accompanied by the fee prescribed for an application to register in 1 class; and
(c) the goods or services to which the additional class or classes relate are within the original specification.
(3) The Commissioner must not allow an application for addition if the applicant has previously deleted the goods or services to which the additional class relates from the application for registration.
(4) The Commissioner must not extend the deadline in subclause (2)(a).