What is a proof of service?

• A. A sworn statement by the server detailing how service was made; it is filed with the court to prove valid service.
• B. A notification letter sent to the defendant confirming service.
• C. A filed court order authorizing service.
• D. A certificate of service from the clerk without the server's statement.

Answer: (A)

Proof of service is the sworn statement by the person who carried out the delivery that details exactly how and when the document was served. This document is filed with the court to show that the defendant was properly notified in the manner required by law, allowing the case to move forward. It’s usually called an affidavit or return of service and should specify who was served, when and where, and the method used (for example, personal service, substituted service, or service by allowed alternative means). The sworn nature gives the court a reliable record to rely on, which is why this document, not a simple notification letter or a clerk’s certification lacking the server’s detailed statement, establishes that service occurred.