—(1) Where a licence has been issued in respect of the dogs in a dog farm, the licensee shall inform the Director-General of any change in the particulars pertaining to the dogs (other than the address at which the dogs are to be kept), as specified in the licence or the conditions thereof, within 14 days of the occurrence of the change.
(2) After considering the change referred to in paragraph (1) and any additional information the Director-General requests from and is provided by the licensee, the Director-General may vary the licence, subject to the imposition of additional conditions on the licence.
(3) Where the number of dogs kept in a dog farm exceeds the maximum number of dogs permitted by the licence issued in relation to the dog farm, the licensee shall apply to the Director-General to vary the licence within 14 days of the occurrence of the change.
(4) After considering an application for a variation of a licence in relation to a dog farm and any additional information the Director-General requests from and is provided by the licensee, the Director-General may vary the licence, subject to the payment of an additional fee by the licensee which shall be the amount which is —
the difference between the licence fee paid for the licence to be varied and the licence fee which would have been payable if a licence is issued in relation to that dog farm with the increased number of dogs; and
adjusted pro-rata according to the proportion the remaining validity period (rounded to the nearest month) of the licence bears to the total validity period of that licence.