(2) 26. (c) notice of the revocation or suspension of its certification authority certificate; and (d) any other fact that materially and adversely affects either the reliability of a certificate that the authority has issued, or the authority's ability to carry out its obligations. In the event of an occurrence that materially and adversely affects a certification authority’s trustworthy system or its certification authority certificate, the certification authority shall(a) notify any person who is known to be or foreseeably will be affected by that occurrence; or (b) act in accordance with procedures governing such an occurrence specified in its certification practice statement. Issuing of certificate (1) (2) A certification authority may only issue a certificate to a prospective subscriber where it has (a) received a request to that effect from the prospective subscriber; and (b) complied with (i) where it has a certification practice statement, all the practices and procedures set forth in the certification practice statement including procedures regarding identification of the prospective subscriber; or (ii) in the absence of a certification practice statement, the conditions in subsection (2). In the absence of a certification practice statement, the certification authority may only issue a certificate to a prospective subscriber where it has ascertained that (a) the prospective subscriber is the person to be referred to in the certificate to be issued; (b) in case the prospective subscriber is acting through an agent, the subscriber authorised the agent to have custody of the subscriber's private key and to request the issue of a certificate setting out the corresponding public key; (c) the information in the certificate to be issued is accurate; (d) the prospective subscriber rightfully holds the private key corresponding to the public key to be referred to in the certificate; (e) the prospective subscriber holds a private key capable of creating a digital signature; and