If you are dealing with a family law case in California—whether it’s divorce, child custody, or support—you will come across something called a Proof of Service form. Many people find this step confusing, but it is one of the most important parts of the legal process.

In simple terms, a Proof of Service shows the court that the other party has officially received the legal documents related to your case. Without it, your case may be delayed or even rejected.
In this guide by WeCan Legal, we will break down everything you need to know about FL-330 (Proof of Personal Service) and FL-335 (Proof of Service by Mail) clearly and practically.
What is a Proof of Service in California Family Law?
A Proof of Service is a legal document that confirms you have properly delivered court papers to the other party involved in your case.
California law requires that:
- The other party must be notified of legal actions
- Documents must be delivered correctly
- Proof must be filed with the court
This ensures fairness and gives both sides an opportunity to respond.
Why is Proof of Service Important?
Failing to properly serve documents can cause serious problems, such as:
- Court delays
- Case dismissal
- Rejection of filings
- Legal penalties
That’s why courts take Proof of Service very seriously.
At WeCan Legal, we often see cases delayed simply because this step was done incorrectly.
Overview of FL-330 and FL-335 Forms
California provides specific forms for different types of service:
1. FL-330 – Proof of Personal Service
This form is used when documents are:
- Delivered in person
- Handed directly to the other party
Example: A process server personally hands divorce papers to your spouse.
2. FL-335 – Proof of Service by Mail
This form is used when documents are:
- Sent through mail
- Not delivered face-to-face
Example: You send court documents via standard mail to the other party.
When Should You Use Each Form?
| Situation | Form to Use |
|---|---|
| Documents handed in person | FL-330 |
| Documents sent by mail | FL-335 |
| Initial divorce papers | Usually personal service required |
| Ongoing case documents | Mail service allowed |
Who Can Serve Documents?
In California:
- You cannot serve documents yourself
- The server must be:
- At least 18 years old
- Not involved in the case
Common options include:
- Friends or family members
- Professional process servers
- Legal service providers like WeCan Legal
Step-by-Step Guide: How to Complete FL-330
Step 1: Fill Out Case Information
- Court name
- Case number
- Names of parties
Step 2: Identify the Server
- Name of person serving documents
- Address
Step 3: Provide Service Details
- Date and time of service
- Location
- Name of person served
Step 4: List Documents Served
Clearly mention all documents delivered.
Step 5: Signature
The server must sign the form.
Step-by-Step Guide: How to Complete FL-335
Step 1: Case Details
Include court and case information.
Step 2: Server Information
Provide name and address of the person mailing documents.
Step 3: Mailing Details
- Date of mailing
- City and state
- Address of recipient
Step 4: Documents List
Mention all documents sent.
Step 5: Declaration
The server signs under penalty of perjury.
Common Mistakes to Avoid
Many people make simple errors that can delay their case:
- Serving documents yourself
- Missing signatures
- Incorrect address
- Not listing all documents
- Filing incomplete forms
Tip: Always double-check before filing.
Filing the Proof of Service with the Court
Once completed:
- Make copies of the form
- Submit it to the court clerk
- Keep a copy for your records
Without filing this form, the court may not proceed with your case.
Practical Example
Let’s say you are filing for divorce:
- You hire a process server
- They deliver papers to your spouse
- The server fills out FL-330
- You file it with the court
Now the court knows the other party has been properly notified.
How WeCan Legal Can Help
Handling legal forms can be stressful, especially if you’re unfamiliar with court procedures.
At WeCan Legal, we assist with:
- Preparing Proof of Service forms
- Ensuring correct filing
- Avoiding delays and rejections
- Supporting family law documentation
Our goal is to make the process simple, accurate, and stress-free.
Tips for Smooth Service Process
- Use a reliable server
- Keep copies of all documents
- Track deadlines carefully
- Use correct form (FL-330 or FL-335)
- File promptly with the court
Conclusion
Understanding FL-330 and FL-335 Proof of Service forms is essential for anyone involved in a California family law case. These forms ensure that all parties are properly informed and that your case moves forward without unnecessary delays.
Whether you are handling divorce, custody, or support matters, getting the service process right is crucial.
If you need help, WeCan Legal is here to guide you every step of the way.
FAQs
1. What is the difference between FL-330 and FL-335?
FL-330 is used for personal (in-person) service, while FL-335 is used when documents are sent by mail.
2. Can I serve documents myself in California?
No, you cannot serve documents yourself. The server must be at least 18 years old and not involved in the case.
3. What happens if Proof of Service is not filed?
The court may delay or reject your case because there is no evidence that the other party was notified.
4. Is personal service required for all documents?
No. Initial documents usually require personal service, but later documents can often be served by mail.
5. Where do I file the Proof of Service form?
You must file it with the same court where your case is being handled.
