Foundational Overview
What is Process Serving?
Process serving is the formal procedure by which a party to a legal action delivers required legal documents to another party, witness, or other individual. It is a constitutional prerequisite to the exercise of personal jurisdiction by a court.
Legal definition
"Service of process" refers to the delivery of legal documents — most commonly a summons and complaint — to a defendant or respondent in a civil action. The term encompasses both the act of delivery and the procedural rules governing how, when, and by whom that delivery must be accomplished.
The requirement of proper service derives from the Due Process Clause of the Fourteenth Amendment, which prohibits a court from exercising jurisdiction over a person without providing that person reasonable notice of the proceedings and an opportunity to be heard.
Failure to properly serve process is a jurisdictional defect. A judgment entered against a defendant who was not properly served is void and subject to collateral attack, regardless of the merits of the underlying claim.
Legal basis
Constitutional and statutory framework
Due Process Clause
The Fourteenth Amendment requires that before a court may exercise personal jurisdiction over a defendant, the defendant must receive notice reasonably calculated to apprise them of the pendency of the action. Mullane v. Central Hanover Bank & Trust Co., 339 U.S. 306 (1950).
Federal Rules of Civil Procedure
Rule 4 of the FRCP governs service of process in federal courts. It specifies who may serve process, the methods of service permitted for individuals, corporations, and governmental entities, and the time limits within which service must be completed.
State Procedural Rules
Each state has its own rules governing service of process in state court proceedings. While many states have adopted rules modeled on the FRCP, significant variations exist — particularly regarding who may serve process, permissible methods, and proof of service requirements.
Who may serve
Qualifications of a process server
Under FRCP Rule 4(c)(2), service may be effected by any person who is at least 18 years of age and not a party to the action. Federal courts do not require process servers to hold a license or certification.
State requirements vary considerably. Some states — including California, Florida, and Illinois — require process servers to register with a county or state authority. Others impose no licensing requirement beyond the federal baseline of age and non-party status.
Regardless of jurisdiction, a process server must be able to execute and file a proof of service (also called an affidavit of service or return of service) attesting to the time, place, and manner of service.
Documents served
Common documents subject to service
Summons
Notifies the defendant of the lawsuit and the deadline to respond.
Complaint
Sets forth the plaintiff's claims and the relief sought.
Subpoena
Compels a witness to testify or produce documents.
Order to Show Cause
Requires a party to appear and explain why relief should not be granted.
Writ
A court order directing a party or officer to perform or refrain from an act.
Petition
Initiates certain proceedings, including family law matters and probate actions.