Signatures must be originals. A notarial act is any act that a notary public of this state is authorized to perform, including taking an acknowledgment, administering an oath or affirmation.The Power of Attorney must be signed in the presence of a Notary Public or authorized Nevada. Department of Motor Vehicles representative. This article and video will show Notaries to fill out each part of a notarial certificate, and common mistakes to avoid. (name(s) of person(s) making statement). In this post, we will look at what notarization is, why it is important, and what you need to know before choosing Notary public services in Nevada.