This article and video will show you the information you need to write in each part of the certificate wording, and common mistakes to avoid. Complete the application which includes the openbook exam.Submit your application. To become a notary in Maine, you must be a Maine resident, complete a notary application and pay the state filing fee. Be at least 18 years of age. The 3 hour Pennsylvania State-Approved notary public training course for all new notary applicants and renewing notaries. The Secretary of State is responsible for completing requests from the public for these special certificates.