What aspect must not be missing from the identification for it to be considered valid?

For identification to be considered valid in a notarial context, it is essential that it includes a physical description of the individual. A physical description typically encompasses details such as the person's height, weight, and distinguishing features. This information helps notaries verify that the individual signing a document is indeed who they claim to be, thereby fulfilling the notary's obligation to prevent fraud and ensure the integrity of the signing process.

While other aspects like age, phone number, and residential address may provide additional context, they are not universally required components of identification for notarial acts. The presence of a physical description is critical because it aids in visually confirming the identity of the signer during the notarization process—making it a key element in maintaining the validity of the identification.