A notary license is a professional certification issued by a state government that allows the holder to act as a public witness and authenticate documents, including contract signings, court filings, and other important transactions. The cost of acquiring a notary license varies depending on the state or region in which it is obtained, but typically involves an application fee, background check, training course, and an exam fee. Obtaining a license also typically requires a bond or insurance requirement. By taking these steps to become licensed, individuals are able to ensure that their signature and stamp are legally binding and accepted by courts throughout the country.