Register of Commissioners for Oaths
For certain legal processes, you must be sworn in before testifying or signing a document, such as a form. For this purpose you can contact a commissioner for oaths. This will give your document a more official aspect, and make your testimony more credible.
To obtain contact information for a commissioner, you can consult the Register of Commissioners for Oaths.
You can also use this public register to check whether a commissioner is authorized to swear you in at a given date and in a given judicial district.