A person opens the door, confirms their name, and receives the papers. That may be personal service.

A different adult opens the door after prior attempts to reach the named person. The server leaves the papers with that adult, explains the general nature of the documents, records the recipient information, and a second copy is later mailed as required. That may be substituted service.

The word may matters in both examples.

New process servers often learn personal service and substituted service as two simple options. The first means handing papers to the named person. The second means leaving papers with somebody else. That explanation is useful as a starting point, but it is not enough to make a field decision.

The correct method depends on the documents, case type, person or entity being served, applicable statute or court order, location, prior attempts, identity facts, recipient capacity, mailing requirement, deadline, and client instructions. A method available for a civil summons may not be available for a restraining order, subpoena, or another document. A method that works for an individual may require a different analysis when the defendant is a corporation.

That is why a server should review the legal documents before service and should never select a service result only because a person was willing to take the packet.

1. Start With the Assignment, Not the Door

The service method should not be invented during the conversation at the door.

Before the first attempt, the server or operations team should know:

• which documents are being served;
• which court and case type are involved;
• the exact legal name of the person or entity to be served;
• whether the target is an individual, corporation, limited liability company, partnership, public entity, or another legal recipient;
• which methods the client has authorized;
• whether personal service is required;
• whether substituted service is legally available and, if so, under what conditions;
• whether previous attempts have already occurred;
• who performed those attempts and what the notes show;
• the service deadline and any hearing date;
• which proof form will be required after completion.

If the assignment says only “serve John Smith” and includes a PDF with no usable method instructions, that is an intake problem. The field server should not solve it by guessing.

A professional workflow identifies ambiguity before dispatch. If the documents, recipient, or permitted method are unclear, the assignment should be paused and reviewed by the operations team or client. It is better to ask one question before an attempt than to discover after delivery that the wrong person received the papers under the wrong method.

2. Personal and Substituted Service at a Glance

This table is a framework, not a universal legal rule. Service requirements change with the document and proceeding. Always check the applicable statute, form instructions, court order, and client direction.

3. What Personal Service Means in the Field

In the ordinary civil summons context, personal service means delivering a copy of the summons and complaint directly to the person to be served. California Code of Civil Procedure section 415.10 is the starting point for personal delivery within that framework.

Operationally, a personal service result should answer four questions:

1. Was this the correct person or legally authorized recipient?
2. Were the correct documents delivered?
3. Did delivery actually occur?
4. Can the server accurately document the time, place, manner, and identifying facts?

A server should not confuse physical proximity with personal service. Seeing a person through a window is not delivery. Speaking through an intercom is not delivery. Leaving a packet at a door after an unidentified person refuses to open it is not automatically personal service. Sending documents to someone after a telephone conversation is not the same event as direct delivery.

Personal service can occur at many locations when the law permits it. A residence is common, but it may occur at a workplace, public location, courthouse exterior, scheduled meeting, or another lawful place. The location changes the practical approach, not the need to establish identity and complete delivery safely.

4. Identity Is a Required Operational Question

A person answering the door is not automatically the named defendant.

Identity may be supported by:

• the person’s direct verbal confirmation;
• recognition from a reliable client-provided photograph;
• a credible third-party introduction;
• a workplace employee confirming the person’s name and role;
• the person’s response to the name under circumstances that reasonably support identification;
• other lawful, assignment-specific identifying information.

No single technique works in every setting. A person may decline to show identification. A photograph may be old. A receptionist may be mistaken. A server must evaluate the available facts and record how identity was established.

Weak field note:

Served male at door.

Useful field note:

At 7:18 PM, an adult male opened the front door. I asked for Daniel Ortiz. He stated, “I am Daniel.” His appearance was consistent with the client-provided photograph. I stated that I had legal documents for him and delivered the complete packet.

The second note explains the identification path without adding unnecessary personal information.

If identity remains uncertain, do not convert uncertainty into certainty because the deadline is close. Record the facts, preserve the description, and request review.

5. Refusal Does Not Always Prevent Delivery

A named person may confirm their identity and then refuse to take the papers. California Courts guidance for civil lawsuits explains that if a defendant will not take the papers, the server may leave them next to the person.

The operational issue is whether identity was established and the papers were delivered in a manner reasonably calculated to place them in the person’s possession or immediate presence under the applicable law. The server should clearly announce the nature of the documents and avoid physical confrontation.

A useful refusal note might state:

The subject verbally confirmed her name. After I stated that I was delivering legal documents, she said she would not accept them and began closing the door. I clearly identified the papers, placed the packet on the threshold immediately in front of her, and observed her look down at it before the door closed.

Do not use “refused” as a shortcut when identity was never established. An unidentified person who closes the door creates a different factual record.

Do not throw documents, force them through a doorway, block a person, enter private property unlawfully, or escalate an argument. The goal is lawful notice, not a confrontation.

6. What Substituted Service Means in the Field

Substituted service is not personal service performed on the wrong person. It is a separate method that can be used only when its requirements are satisfied.

For many individual defendants served with a civil summons under Code of Civil Procedure section 415.20(b), the basic structure includes:

1. personal delivery cannot be completed with reasonable diligence;
2. the papers are left at a permitted location;
3. the papers are left in the presence of a qualifying adult;
4. the substitute recipient is informed of the general nature of the papers;
5. a second copy is mailed to the person being served at the place where the first copy was left;
6. the proof accurately documents delivery, recipient, mailing, and required diligence.

Every step matters. If the server leaves the documents with a household member but the required mailing never occurs, the process is not operationally complete. If the mailing occurs but the delivery was made at an unverified address, the mailing does not repair the location problem. If the recipient is not a qualifying person, a well-written proof does not change that fact.

Substituted service is best understood as a connected workflow, not a door result.

7. Reasonable Diligence Is More Than an Attempt Count

A common beginner question is, “How many attempts do I need before substituted service?”

The better question is, “What diligence is required for these documents, this recipient, this service date, and this method?”

In 2026, California Courts public guidance commonly instructs servers trying to serve a civil lawsuit to attempt the person on different days and at different times before using substituted service. Family law guidance describes at least three attempts in its substituted-service instructions. The controlling authority and facts still need to be identified for the assignment.

Beginning January 1, 2027, AB 747 creates a more specific definition of reasonable diligence for specified service under Code of Civil Procedure section 415.20(b). The new framework includes at least three good-faith attempts at personal delivery on three different days at three different times, subject to the statute’s scope and additional requirements.

Even under a numerical minimum, attempt count is not the same as attempt quality.

Three attempts at 2:00 PM on consecutive weekdays may reveal very little when reliable information shows that the subject works until 6:00 PM. Three attempts at a gated building do not establish that the correct unit was ever reached. Three visits to an outdated address do not become useful merely because the counter reached three.

Good-faith planning considers:

• the type and reliability of the address;
• known work schedules;
• early-morning, evening, or weekend availability;
• vehicle information;
• building and gate access;
• business operating hours;
• information learned during earlier attempts;
• the remaining time before the deadline.

The attempt history should show a genuine effort to reach the correct person, not a mechanical series of visits designed only to unlock another method.

8. Evaluate the Substitute Recipient

For an individual summons under the applicable provision of section 415.20(b), substituted service may involve leaving the papers at the person’s dwelling house, usual place of abode, usual place of business, or qualifying usual mailing address in the presence of a competent member of the household or a person apparently in charge, at least 18 years old.

That language creates several field questions.

Is the Person an Adult?

The server should not rely on wishful thinking when age is unclear. Ask when appropriate. Record the answer or the objective basis for the age assessment. Do not describe a teenager as “approximately 21” merely to fit the method.

Is the Person Connected to the Household?

A visitor standing in the driveway is not automatically a competent member of the household. A food-delivery driver, contractor, or neighbor may be present without belonging to the household.

The server can ask the person’s relationship to the residence and whether the subject lives there. The note should preserve the response, including uncertainty.

Is the Person Apparently in Charge?

At a workplace, job title and conduct matter. A receptionist stationed at the front desk may present different facts from a customer in the lobby. An employee who says, “I am covering the desk and can receive deliveries for the office,” provides more useful capacity information than a person who says, “I do not work here.”

The server should record the person’s name when provided, title or relationship, approximate age when relevant, physical description when required, exact statements affecting capacity, and whether the person was informed of the general nature of the papers.

Do not upgrade a vague statement into a legal conclusion. “She said she works in the office” is a field fact. “She was authorized to accept all legal process” may be a conclusion the available facts do not support.

9. Confirm That the Location Is Permitted

A qualifying recipient at the wrong location does not necessarily create valid substituted service.

Before delivery, the server should confirm as much as reasonably possible:

• the exact street address;
• apartment, unit, suite, or office number;
• whether the subject currently resides or works there;
• whether the address is merely a former location;
• whether a mailing address qualifies under the applicable statute;
• whether the person encountered is connected to the relevant household or business location;
• whether access limitations prevented the server from reaching the actual location.

Consider an apartment complex with one shared street address and 80 units. Leaving documents with an adult in the lobby without confirming the person’s relationship to the subject is not the same as reaching the correct unit and evaluating a household member there.

Consider a coworking building. A building receptionist may serve tenants across dozens of independent businesses. Whether that person is an appropriate recipient for a particular office requires more than the fact that they sit near the entrance.

Address verification should happen before the method is selected, not after the proof is drafted.

10. Treat Mailing as Part of the Method

For substituted service of a summons under section 415.20, delivery and mailing are connected parts of the method.

The required mailing should be managed as a tracked operational event with:

• the name of the person being served;
• the exact address where the papers were left;
• the documents included in the mailed packet;
• the mailing method required by the applicable version of the statute;
• the date and place of mailing;
• the identity of the person who completed the mailing;
• any available tracking or mailing record;
• the service-completion date calculated under the applicable rule.

The assignment should not move to “completed” merely because the field server delivered papers to a substitute recipient. A better interim status is “substitute delivery completed, mailing pending.”

This distinction protects the deadline calculation and the Proof of Service. It also prevents a common handoff failure in which the server assumes the office will mail while the office assumes the server already mailed.

Mailing should not be backdated. It should not be inferred from a template. The proof should identify the mailing that actually occurred.

11. Individuals and Business Entities Are Different

Serving a corporation is not simply serving “the business.” The assignment should identify the legal entity and the person or capacity through which the entity may be served.

California Code of Civil Procedure sections 416.10 through 416.90 address persons who may receive a summons for different categories of defendants. For a corporation, the appropriate person may include an agent for service of process or specified officers and managers, depending on the circumstances and governing provision.

Section 415.20(a) contains a substituted-service pathway for certain organizational recipients. Its structure differs from the individual pathway in subdivision (b). That is one reason a server should not carry an individual residential checklist into a corporate office without review.

Before attempting a business, confirm:

• the exact legal entity name;
• whether the named defendant is the entity or an individual associated with it;
• the current agent for service of process when relevant;
• the service address and office hours;
• the authorized recipient or statutory capacity;
• whether the assignment permits a substituted method;
• the mailing step and address if substituted service is used.

If a receptionist says the registered agent is no longer at that office, record the statement. Do not serve the receptionist and later describe them as the registered agent. If the office name does not match the defendant, do not assume that two similarly named companies are the same entity.

12. Not Every Document Follows the Summons Rules

Many serious process serving mistakes begin with a rule that is correct for one document and incorrectly applied to another.

Examples:

• POS-010 is generally used for Proof of Service of Summons, while POS-020 addresses personal service of certain civil papers other than a summons.
• Family law service may use FL-115 and related instructions.
• Small claims matters use their own forms, deadlines, and mailing documentation.
• Restraining order requests commonly require personal service on the restrained person and use proceeding-specific proof forms such as DV-200, CH-200, EA-200, SV-200, or WV-200.
• Subpoenas have their own service requirements and proof sections.
• A court order may authorize or restrict a particular alternative method.

A server should never reason, “Substituted service was allowed on my last job, so it is allowed here.”

The documents control the research path. The assignment instructions should identify the permitted method. When they do not, the server should escalate instead of improvising.

13. Common Field Scenarios

Scenario 1: The Named Person Confirms Identity and Accepts the Packet

The server reaches the listed residence. A person answers, verbally confirms the exact name, and matches the reliable client photograph. The server states the nature of the documents and hands over the complete packet.

Likely operational result: Personal service, subject to the documents and applicable rule.

Record: Identity basis, date, exact time, complete address, direct delivery, documents, and any relevant response.

Scenario 2: The Named Person Confirms Identity but Refuses the Packet

The person confirms their name, refuses to touch the documents, and attempts to close the door. The server identifies the papers and leaves them immediately next to the person without entering or creating a confrontation.

Possible operational result: Personal service may be supportable when the delivery complies with applicable law.

Record: Exact identity confirmation, words used, placement of papers, distance from recipient, and what the server observed.

Scenario 3: A Spouse Answers on the First Attempt

The spouse says the defendant is at work and offers to take the papers. No prior personal attempts have occurred.

Operational result: Do not assume substituted service is authorized merely because an adult household member is available. Review the applicable diligence and method requirements.

Next action: Record the information about the subject’s work schedule, preserve the spouse’s statement, and use it to plan a meaningful personal attempt unless the operations team confirms another lawful path.

Scenario 4: An Adult Household Member Is Reached After Documented Attempts

The file contains meaningful personal-delivery attempts at varied times. The address remains reasonably verified. An adult household member confirms the subject lives there and states their relationship.

Possible operational result: Substituted service may be available if every statutory condition and instruction is satisfied.

Record: Prior attempt history, location, recipient name or refusal, relationship, age facts, notice of contents, delivery, and the required mailing event.

Scenario 5: A Neighbor Offers to Accept the Papers

The subject is not home. A neighbor recognizes the name and says they can pass along the packet.

Operational result: A helpful neighbor is not automatically a qualifying household member or person apparently in charge.

Next action: Do not substitute convenience for the recipient requirement. Record any reliable address information the neighbor provides and continue according to instructions.

Scenario 6: A Receptionist Is Present at the Subject’s Workplace

The receptionist confirms the subject works there but will not call them to the lobby. The receptionist offers to take the papers.

Operational result: The server must evaluate the documents, prior diligence, location, age, and whether the receptionist is a person apparently in charge for the applicable method. The word “receptionist” alone does not answer every legal question.

Scenario 7: The Address Is Wrong

A current resident provides credible information that the subject moved two years earlier. Mailboxes and directories do not show the subject’s name.

Operational result: This is an address problem, not an automatic substituted-service opportunity.

Next action: Document the source and exact statement, report the address concern, and request updated research or another address.

Scenario 8: The Server Cannot Reach the Unit

The apartment address may be current, but the server is stopped at a locked exterior gate and receives no response through the callbox.

Operational result: The server has documented an access-limited attempt, not contact at the subject’s door and not substituted service.

Next action: Report the access condition, directory information, calls made, available management office, and any lawful options for a later attempt.

14. Document the Event Without Rewriting It

The field record should be created immediately after the attempt, from what the server personally observed and heard.

For personal service, record:

• date and exact time;
• complete location;
• how identity was established;
• what the server said about the documents;
• how physical delivery occurred;
• the recipient’s material statements or refusal;
• the documents delivered;
• required photographs or location data when applicable.

For substituted service, also record:

• the prior attempt history or connected diligence record;
• why the location was treated as a qualifying address;
• the substitute recipient’s name, when provided;
• age facts, relationship, title, or apparent capacity;
• the recipient’s exact relevant statements;
• that the recipient was informed of the general nature of the papers;
• the location and manner of delivery;
• the mailing requirement and who will complete it;
• the mailing date, place, method, and address after it occurs.

Learn to write complete field notes that separate observation from conclusion. “Adult female stated she was the subject’s sister and lived at the residence” is useful. “Served family” is not.

Never edit the field note to make it fit the proof. If a fact is missing, investigate it. If the event does not support the anticipated method, report that honestly.

15. Match the Proof to the Completed Method

The Proof of Service should be built from the verified event, not from a preselected outcome.

Before the proof is signed, compare:

1. the case caption and recipient;
2. the documents dispatched;
3. the original field note;
4. the selected method;
5. the service address, date, and time;
6. the recipient identity or substitute capacity;
7. the mailing record when required;
8. the server’s declaration and signature;
9. the correct Judicial Council or proceeding-specific form.

POS-010 allows the server to identify personal service or substituted service for a summons and to record the corresponding facts. It does not authorize a method merely because a checkbox exists.

Common errors include selecting personal service when the packet was left with a spouse, omitting the mailing after substitute delivery, listing the subject as the physical recipient when someone else accepted the packet, using the delivery date as the mailing date, and preparing the proof before the final event occurred.

These are among the common Proof of Service mistakes that create additional work for law firms and can undermine confidence in an otherwise legitimate assignment.

16. What Changes on January 1, 2027

California’s AB 747, the Service of Process Accountability, Reform and Equity Act, changes specified summons-service procedures beginning January 1, 2027.

For new servers, three points are especially important.

More Specific Diligence Records

For the situations covered by the new section 415.20(b), reasonable diligence includes at least three good-faith attempts to personally deliver the summons and complaint on three different days at three different times. The statute’s full conditions and exceptions must be reviewed for the actual assignment.

A generic note such as “three attempts completed” will be increasingly inadequate. Each attempt needs its own time, location, actions, observations, and result.

Photographic Documentation

The version of section 417.10 operative in 2027 adds site-photograph requirements for covered completed or attempted service under sections 415.10, 415.20, and 415.45. The required photographs generally must contain a readable, automatically recorded date, time, and GPS or equivalent location stamp. The law also addresses the relevant door or entrance, inaccessible locations, unavailable signals, and safety exceptions.

A photo does not independently prove identity, recipient capacity, or valid delivery. It supports the record of the site and attempt. The field note and proof must still explain what happened.

Updated Forms and Workflow

The Judicial Council has developed rules and form changes to implement AB 747 and related legislation. Providers should use the form and instructions effective on the date of service. An old POS-010 saved on a desktop should not be treated as permanent.

Do not apply the 2027 rules backward to describe a 2026 attempt, and do not continue a 2026 workflow after the operative date without review.

17. Field Checklists

Before Personal Service

• Confirm the documents and case type.
• Confirm the exact person or legal capacity to be served.
• Review photographs and lawful identifying information.
• Confirm the address and deadline.
• Know the required proof form.
• Review safety and access information.

At Personal Service

• Establish identity using reliable facts.
• State the nature of the papers as appropriate.
• Deliver the complete packet.
• Avoid confrontation or unlawful entry.
• Record the exact date, time, address, and manner.
• Capture required site documentation.

Before Substituted Service

• Confirm that the method is available for the documents.
• Review the complete diligence history.
• Confirm that the current statutory standard has been satisfied.
• Verify the residence, usual abode, workplace, office, or mailing location as applicable.
• Evaluate the substitute recipient’s age, relationship, title, or apparent capacity.
• Know who will perform the mailing and when.

After Substitute Delivery

• Record the recipient and capacity facts immediately.
• Record that the general nature of the papers was communicated.
• Preserve the exact delivery location, date, and time.
• Complete and document the required mailing.
• Calculate completion using the applicable rule.
• Review the proof against field and mailing records.
• Do not close the assignment while a required step remains pending.

Stop and Escalate When

• the documents or case type are unclear;
• the person to be served does not match the assignment;
• identity cannot be established;
• the address appears outdated or incorrect;
• the substitute recipient’s age or relationship is uncertain;
• the method requires diligence that is not documented;
• client instructions conflict with the apparent legal requirement;
• a required mailing cannot be completed as instructed;
• the field event does not match the proof template;
• safety conditions make the attempt unreasonable.

18. How Managed Operations Reduce Method Errors

Personal versus substituted service may look like a choice made by one person at one door. In a reliable operation, the decision is supported by the entire assignment workflow.

The intake team verifies the documents and recipient. The case record preserves the deadline and permitted method. The field server sees the prior attempts and address information. Each new attempt creates a structured record. A required mailing remains visible as an open action. The proof is reviewed against the original field and mailing data.

The ProofSer Platform is designed around that connected workflow. It keeps case information, field attempts, photos, GPS data, notes, communications, next actions, mailing information, and completion documentation associated with the same assignment.

Technology does not decide every legal question. It can prevent common operational failures:

• using a method without seeing the prior attempt history;
• closing substitute service before mailing;
• losing the recipient description in a text message;
• preparing a personal-service proof from a substituted-delivery note;
• forgetting an approaching deadline while waiting for clarification;
• using an outdated form after a rule change.

The most important habit for a new process server is not memorizing two labels. It is learning to move from facts to method in the correct order.

Review the assignment. Attempt the authorized method. Establish identity or recipient capacity. Document what actually happened. Complete every follow-up step. Prepare the proof from the verified record.

When the facts do not support the expected result, stop and escalate. A professional server does not force the event into a checkbox.

This article is for general educational and operational information and is not legal advice. Service requirements depend on the documents, case type, recipient, service date, statute, court order, local procedure, and facts. Process servers should follow lawful instructions and escalate legal questions to the responsible attorney or requesting party.