The Commissioner of Oaths is present when the will is signed by T with a mark, or another person signs on T’s behalf; and
The certificate concerned is made as soon as possible after the will has been signed
If T dies before the certificate is made, it must be made as soon as possible thereafter
The certificate can be attached to any page of the will
If the will consists of more than one page, the Commissioner must also sign all the other pages, other than where the certificate appear, anywhere on the page