Every limited liability company must have an agent of record in its state of registration, and changing one is a filing rather than a private decision. Some states call the appointee the registered agent, others the resident agent, and a few use the service-of-process wording. They are the same role, and the difference matters only when you are looking for the right form.
Appointing one at formation, and changing one later
The agent is named in the organisational filing that creates the company, with the agent's consent. Changing the agent afterwards is a separate filing with the register, usually a short statement of change, and it takes effect when the state processes it rather than when the company decides. Until then the old agent remains the agent of record and legal papers delivered to them are properly served, which is why the filing matters more than the internal arrangement.
Resident agent, registered agent, same role
Michigan and Maryland say resident agent. Most states say registered agent. Arizona says statutory agent. California's form asks for an agent for service of process. The obligations are the same in each case: a street address in the state, availability during business hours, and acceptance of service and official mail. When searching a state's own site, using that state's word is the difference between finding the form and not.
What the record shows, and what it does not
The register displays the agent's name and address against the entity, and in most states the date of the last change. It does not show the contract between the company and a commercial agent, the fee, or anything about the relationship. For diligence purposes the useful reading is whether the agent is a commercial provider or an individual, and whether the address is in the state at all: a lapsed or out-of-state agent address is a reliable signal that the entity is not being maintained.
Questions people ask about register agent for llc
Do I have to file to change my LLC's registered agent?
Yes. It is a filing with the state register. The change takes effect when the state processes it, not when the company decides.
What is a resident agent?
The same role as a registered agent. Michigan and Maryland use the term; Arizona says statutory agent; California asks for an agent for service of process.
Can the registered agent address be a PO box?
No. Every state requires a street address in the state where someone can accept delivery during business hours.