An agent for service of process is the person or company a state register names as able to receive legal papers on a business's behalf. Every state requires one for every registered entity, and the appointment is a matter of public record rather than a private arrangement. The name most states use for the role is registered agent, and the two terms describe the same appointment seen from two sides: the service function and the register entry.
What the appointment actually obliges
The agent must have a street address in the state of registration, not a post office box, and must be available at it during ordinary business hours to accept delivery. That availability requirement is the whole point: a state will not let a company be unreachable for legal purposes. The agent accepts service of process, which means court papers, and also receives official correspondence from the register itself, including annual report notices and any warning that the entity's standing is at risk.
Why the address is public and unavoidable
The registered agent's name and address appear on the public record for the entity and cannot be suppressed, because the whole function depends on the public being able to find them. Owners who use their home address as the agent address are publishing it. That is the main practical reason commercial agent services exist: they substitute their own address for the owner's on a record anyone can search, while keeping the legal function intact.
What happens when the appointment lapses
An entity whose registered agent has resigned, moved out of state or stopped being reachable is out of compliance, and the register will say so. In most states a persistent failure to maintain an agent is itself a ground for administrative dissolution or revocation, independent of whether reports have been filed. It also means legal papers can be served by other means, which is how a company ends up with a default judgment it never saw coming.
Questions people ask about agent for service of process
Is an agent for service of process the same as a registered agent?
Yes. The terms describe the same appointment. Some states, California among them, use the service-of-process wording on the form itself.
Can I be my own registered agent?
In most states yes, if you have a street address in the state and are available there during business hours. The address then becomes part of the public record.
What happens if my registered agent resigns?
The entity must appoint a replacement. Until it does, it is out of compliance and, in many states, exposed to administrative dissolution or revocation.