(1)  The Registrar may, by notice in writing to the holder of a certificate of competency, cancel or suspend the certificate if –

(a) the holder has not complied with a condition of the certificate; or

(b) the holder has been convicted of any offence under any Act if the Registrar considers the offence is relevant to the holder's competency to handle a listed chemical product; or

(c) the annual fee payable under regulation 15 has not been paid on or before the date on which it is due; or

(d) the Registrar becomes aware of any information which, if it had been known at the time the certificate was granted, would have prevented the grant of the certificate; or

(e) the Registrar is satisfied that the holder is unable to competently and safely handle or use a listed chemical product, or class of listed chemical product, to which the certificate relates.

(2)  A notice must specify –

(a) the date on which the cancellation or suspension takes effect; and

(b) in the case of suspension –

(i) the period of suspension; or

(ii) any conditions that must be satisfied before the suspension will be lifted.