Notary Seal
The Notary seal are manufactured by ink stamp suppliers. In California it is required that the seal manufacturer be registered with the Secretary of State. Each California notaries seal identifies who the seal manufacturer is through the code on the seal border. In addition, in order for a California notary to get a seal, they must have permission though the Secretary of State by receiving a Certificate.
The notary seal should be kept under lock and key for extra added safety. It is smart to have an extra seal in case one fails or runs out of ink. There are ink refills for the self-inking seals. Loss or stolen seals should be reported.