California Form FL-664 is the Notice of Rights and Responsibilities — Health-Care Costs and Reimbursement Procedures that the Judicial Council attaches to every California child or family support order requiring a parent to provide health insurance or share uninsured medical costs. It tells both parents how to request reimbursement, how to assign insurance benefits, and what the law requires under California Family Code §§ 3750–3753.
The form itself is short, but the consequences of mishandling it are not. According to the California Department of Child Support Services, more than 1.1 million California children are covered by active support orders each year, and medical reimbursement disputes are among the top three reasons parents return to court after judgment.
Here is what you will learn in this guide:
- 📄 What FL-664 is, who must file it, and which orders it must be attached to
- 🧾 How to fill out every section line by line, with italicized sample entries
- 👨👩👧 Three full walkthroughs using real-world fact patterns
- 🏛️ How to file FL-664 by e-filing, mail, drop-box, and in person
- ⚖️ The 30-day reimbursement request rule, the 30-day payment rule, and the penalties for ignoring either
What the Form Is and Who Must File It
Form FL-664 is a mandatory Judicial Council attachment to any California child support, family support, or spousal support order that includes a health-insurance or uninsured medical-cost provision. The current revision date printed on the form is January 1, 2012, and that version remains the operative form on the California Courts forms page as of 2026. Always confirm the revision date in the lower-left corner before filing, because clerks reject outdated Judicial Council forms.
The form is required by Family Code § 3751.5, which directs the Judicial Council to publish a standard notice that explains parents’ health-care rights and the reimbursement procedure. Without FL-664 attached, a support order that addresses health care is technically incomplete, and a clerk in counties like Los Angeles or Sacramento may reject the judgment package on intake.
Anyone who prepares a support order attaches FL-664. That includes:
- Pro se custodial parents filing a Findings and Order After Hearing (FL-340) with a child-support attachment
- Non-custodial parents stipulating to a Stipulation to Establish or Modify Child Support (FL-350)
- Family law attorneys preparing judgments of dissolution
- Local Child Support Agency (LCSA) caseworkers filing administrative orders under Title IV-D of the Social Security Act
The form is also sent to the parent ordered to maintain insurance whenever a National Medical Support Notice is issued under federal law at 42 U.S.C. § 1396g-1.
Before You Start: Documents and Information You Need
FL-664 is a notice rather than a fill-in form, so most “preparation” is gathering the records that prove your right to reimbursement after the order is signed. Use this pre-filing checklist before you attach FL-664 or invoke its procedures.
- The case caption and case number. You need the exact case number from the underlying support case so the attachment is filed in the correct file. A wrong digit sends the form to the wrong court file and stalls reimbursement.
- The full legal names of both parents. Names must match the underlying Petition (FL-100). A mismatch causes the clerk to reject the attachment as belonging to a different case.
- The current support order or judgment. You need the operative order that ordered insurance, because FL-664 only has legal force when attached to a live order under Family Code § 3751.
- Insurance card and policy details. The carrier name, group number, member ID, and customer-service phone number are needed to pass benefits information to the other parent within the timeline FL-664 requires.
- Itemized medical bills and EOBs. Reimbursement requests require an itemized bill and the Explanation of Benefits showing what insurance paid, because “reasonable cost” under FL-664 means the unreimbursed balance only.
- Proof of payment. Receipts, canceled checks, or credit-card statements show what the requesting parent actually paid out of pocket.
- Proof of timely request. Save the certified-mail receipt or the date-stamped email used to deliver the bill, because the 30-day clock runs from the date of receipt.
- A completed Proof of Service by Mail (FL-335). Every attachment must be served on the other party, and FL-664 is no exception.
- Banking information for assignment of benefits. If the parent receiving care assigns benefits directly to the provider, the provider’s tax-ID and billing address belong in the cover letter that accompanies FL-664.
Missing any of these items does not invalidate FL-664 itself, but it almost guarantees a denied reimbursement request when the receiving parent uses the form’s own deadlines as a defense.
Where to Get the Form and How to Access It
Always download FL-664 from the official Judicial Council forms library rather than a third-party site, because unofficial copies sometimes carry stale revision dates that clerks reject. The direct link to the fillable PDF is the FL-664 PDF, and the file is free.
You can also obtain the form three other ways. First, every county’s self-help center keeps printed copies; the San Diego County Family Law Facilitator and the Los Angeles Self-Help Resource Center both stock it. Second, the California Courts Self-Help Guide links the form inside its child-support workflow. Third, the California Department of Child Support Services attaches FL-664 to every IV-D order it issues, so parents in open LCSA cases receive the form in the mail without having to download it.
The form is two pages. Page one contains the seven numbered notice items and the reimbursement procedure. Page two has a continuation block that some courts use for case caption information. Most parents print both pages, attach them to the support order, and serve them together with the order.
If you cannot print at home, the California State Library and most public libraries print Judicial Council forms for a small per-page fee. Print on standard 8.5 × 11 white paper using black ink, because clerks reject color-tinted or off-size paper under California Rules of Court rule 2.103.
Step-by-Step: How to Fill Out FL-664 Line by Line
FL-664 is structured as a header (case caption), seven numbered notice items, a reimbursement procedure block, and a signature/attachment line. The form is preprinted with statutory language, so most “filling out” is identifying the parties, attaching the form to the right order, and following the procedure when reimbursement time comes. Each subsection below covers one field with the six required elements: plain English, how to answer, example entry, nuance, common mistake plus consequence, and a misconception.
Caption Box: Attorney or Party Without Attorney
Plain English. This is the top-left box that asks who is preparing the form. It is the same caption used on every Judicial Council family-law form.
How to answer. Write your full legal name, mailing address, telephone number, and email if you are self-represented. If an attorney prepares the form, the attorney enters their name, State Bar number, firm address, and contact information. Use ALL CAPS for the name field to match clerk preference in Los Angeles Superior Court.
Example entry. MARIA LOPEZ, 482 OAKWOOD DRIVE, FRESNO, CA 93720, (559) 555-0142, maria.lopez@example.com, SELF-REPRESENTED.
Nuance. If you have moved since filing the underlying case, update your address with a Notice of Change of Address (MC-040) before attaching FL-664, because the court mails reimbursement-dispute notices to the address on file.
Common mistake and consequence. Listing only a P.O. Box without a residential address triggers rejection in counties that require both for service purposes, and the attachment is returned unfiled.
Misconception. Many parents believe the caption is optional on attachments. It is not. California Rules of Court rule 2.111 requires every paper filed in a civil action to include the caption.
Caption Box: Court Branch and County
Plain English. This identifies which superior court holds your case.
How to answer. Enter the county, the branch name, the street address, the mailing address (if different), and the branch label exactly as printed on the underlying order.
Example entry. SUPERIOR COURT OF CALIFORNIA, COUNTY OF FRESNO — CENTRAL DIVISION, 1100 VAN NESS AVENUE, FRESNO, CA 93724.
Nuance. Family law cases sometimes move between branches; use the branch where the active file lives, not where the case opened.
Common mistake and consequence. Listing the wrong branch sends the attachment to a clerk who has no file for the case, and the form is rejected.
Misconception. Parents often think “any branch in the county” works. It does not. The Fresno Superior Court Local Rules assign cases to specific branches.
Caption Box: Petitioner, Respondent, and Other Parent/Party
Plain English. These three lines name the parents in the case.
How to answer. Copy the names exactly as they appear on the Summons (FL-110) or the underlying order. Petitioner is whoever started the case; Respondent is the responding party; “Other Parent/Party” is used in parentage cases under Family Code § 7600.
Example entry. PETITIONER: MARIA LOPEZ. RESPONDENT: DAVID LOPEZ.
Nuance. If a parent has changed their legal name since the case was filed, keep the original case caption and address the name change separately with a Name and Information About the Child (FL-105/GC-120) update if applicable.
Common mistake and consequence. Reversing petitioner and respondent puts the form in the wrong logical position in the file, and a judge reviewing reimbursement disputes may believe the wrong parent is requesting payment.
Misconception. Some filers believe initials are acceptable for minors. They are, but they are not acceptable for the parents themselves.
Case Number Box
Plain English. The unique court-assigned number for your case.
How to answer. Enter the case number exactly as printed on the underlying order, including all letters, dashes, and digits. Do not invent spaces.
Example entry. 23FL-04821.
Nuance. Consolidated cases sometimes carry two numbers separated by a slash. Use both, in the same order they appear on the most recent order.
Common mistake and consequence. Transposing two digits is the single most common FL-664 error, and it sends the attachment to the wrong file where it is eventually shredded after 30 days under most county retention rules.
Misconception. A few parents think the case number changes when modifications are filed. It does not. The case number stays with the file for life.
Notice Item 1: Insurance Coverage Notice
Plain English. Item 1 tells the parent ordered to maintain insurance that the order requires it.
How to answer. Nothing is filled in here. The text is preprinted. The parent ordered to provide insurance simply receives notice through the attached form.
Example entry. No data is added; the preprinted text is the notice.
Nuance. The duty to maintain coverage continues even if employment changes; the parent must replace the coverage within a reasonable time under Family Code § 3751(a)(2).
Common mistake and consequence. Some attorneys cross out item 1 when no insurance is ordered. Do not. Crossing out preprinted Judicial Council text invalidates the form, and the clerk rejects it.
Misconception. Parents sometimes think item 1 only applies to employer plans. It applies to any health coverage, including Covered California marketplace plans.
Notice Item 2: Assignment of Benefits
Plain English. Item 2 says either parent can sign over insurance benefits directly to the medical provider so the provider gets paid first.
How to answer. Nothing is filled in on FL-664 itself. The assigning parent signs a separate assignment letter to the carrier referencing this paragraph.
Example entry. A cover letter to the carrier reads: “Pursuant to FL-664 item 2 and Family Code § 3752, I assign benefits to Valley Children’s Hospital for services rendered on 03/12/2026.”
Nuance. Some carriers require their own assignment form. Ask the carrier whether it honors the FL-664 statutory assignment or needs its proprietary document.
Common mistake and consequence. Failing to copy the other parent on the assignment letter creates a dispute about whether they had notice, which can void the assignment in front of a judge.
Misconception. Parents often believe assignment requires the other parent’s consent. It does not, when made under Family Code § 3752.
Notice Item 3: Providing Insurance Information
Plain English. The parent who carries the insurance must give the other parent the policy information needed to use it.
How to answer. Within a reasonable time after the order, send a copy of the insurance card, policy number, group number, and claims address to the other parent in writing.
Example entry. “Carrier: Anthem Blue Cross. Member ID: XEJ123456789. Group: 567890. Claims address: P.O. Box 60007, Los Angeles, CA 90060.”
Nuance. “Reasonable time” is undefined, but courts in Marriage of Lim (1996) 50 Cal.App.4th 1234 have treated 30 days as the outer limit.
Common mistake and consequence. Sending only a photo of the card without the claims address forces the other parent to call the carrier, which delays claims and can push them past timely-filing limits with the carrier.
Misconception. Many parents think a verbal disclosure is enough. It is not. The duty is to provide written information.
Notice Item 4: Reasonable-Cost Reimbursement
Plain English. Each parent pays one-half of all reasonable uninsured health-care costs unless the order says otherwise.
How to answer. Nothing is filled in. The parent seeking reimbursement follows the procedure on page one of FL-664.
Example entry. A reimbursement request reads: “You owe one-half of \$842.00 in unreimbursed costs = \$421.00, due within 30 days.”
Nuance. “Reasonable cost” excludes elective procedures the other parent did not consent to, unless emergency. Disputes go to the court that issued the order under Family Code § 4063.
Common mistake and consequence. Asking for the full bill instead of one-half guarantees the other parent will refuse and forces a Request for Order (FL-300) to enforce.
Misconception. Parents often think mental-health and orthodontia are excluded. They are not. Both fall within “health-care costs” under Family Code § 3751.
Notice Item 5: 30-Day Reimbursement Request Rule
Plain English. The parent who paid must request reimbursement within 30 days of paying the bill or as soon as practical.
How to answer. Send the itemized bill, EOB, and proof of payment to the other parent within 30 days of the date of payment. Use a method that creates proof of receipt.
Example entry. “Date paid: 03/12/2026. Date request sent: 03/20/2026 by certified mail, tracking 9407 1112 0234 5678 9012 34.”
Nuance. “As soon as practicable” allows brief extensions for hospitalization or natural disaster, but the safer practice is to send within 30 days every time.
Common mistake and consequence. Waiting 60 or 90 days lets the other parent argue waiver under Family Code § 4063(b), and the court may deny the reimbursement entirely.
Misconception. Some parents believe they can wait until the end of the year and submit a single packet. That is risky and not what the form requires.
Notice Item 6: 30-Day Payment Rule
Plain English. Once a proper reimbursement request is received, the other parent has 30 days to pay or to dispute in writing.
How to answer. The receiving parent either sends payment within 30 days or sends a written objection identifying which charges are disputed and why.
Example entry. “Received request 03/22/2026. Payment of \$421.00 mailed 04/15/2026, check #2041.”
Nuance. A partial payment plus written objection on the rest is permitted; total silence is not.
Common mistake and consequence. Ignoring the request entirely supports a contempt finding under Code of Civil Procedure § 1218, which can result in fines or jail.
Misconception. Parents often believe they can lump unpaid medical reimbursements into a “Venmo offset” against support. They cannot. Support and medical are separately enforceable.
Notice Item 7: Enforcement
Plain English. Item 7 reminds both parents that unpaid reimbursements are enforceable like any other money judgment.
How to answer. No data is entered. The remedy is a Request for Order (FL-300) plus an Income Withholding Order (FL-195) if needed.
Example entry. A motion caption reads “Request for Order — Enforcement of Unreimbursed Medical Costs.”
Nuance. Unreimbursed medical claims accrue 10% statutory interest under Code of Civil Procedure § 685.010 once reduced to a sum certain.
Common mistake and consequence. Filing a small-claims action instead of an FL-300 sends the case to the wrong court, which lacks jurisdiction over family-law reimbursement.
Misconception. Parents sometimes think enforcement is the LCSA’s job automatically. It is only when the case is open with the LCSA.
Signature and Attachment Line
Plain English. The bottom of FL-664 is a notice block; it does not require a fresh signature, but it must be attached to a signed order.
How to answer. Attach FL-664 behind the signed order or stipulation. The judge’s signature on the underlying order incorporates FL-664.
Example entry. Behind a FL-340 signed by Judge Ramirez, page three is FL-664 (Rev. January 1, 2012).
Nuance. If the order is a stipulation, both parties’ signatures incorporate FL-664 by reference under Family Code § 3585.
Common mistake and consequence. Forgetting to attach FL-664 means a later contempt motion can be defeated by arguing the parent never received statutory notice.
Misconception. Filers sometimes think FL-664 needs notarization. It does not.
Three Filled-Out Examples Using Real Scenarios
Scenario 1: Maria Lopez, Custodial Parent Seeking ER Reimbursement
Maria is the custodial parent of two children in Fresno. After her son Diego’s emergency-room visit, she paid \$842 out of pocket and now wants reimbursement from David, the non-custodial parent.
| Form Section | What Maria Enters |
|---|---|
| Caption — Party | MARIA LOPEZ, 482 OAKWOOD DRIVE, FRESNO, CA 93720, SELF-REPRESENTED |
| Court Branch | SUPERIOR COURT OF CALIFORNIA, COUNTY OF FRESNO — CENTRAL DIVISION |
| Petitioner / Respondent | PETITIONER: MARIA LOPEZ / RESPONDENT: DAVID LOPEZ |
| Case Number | 23FL-04821 |
| Item 3 — Insurance Info | Maria already has Anthem card from David; no entry needed |
| Item 4 — Reasonable Cost | Calculates 1/2 of \$842 = \$421 owed by David |
| Item 5 — 30-Day Request | Mails itemized ER bill, EOB, and proof of payment 03/20/2026 by certified mail |
| Item 6 — 30-Day Payment | Tracks David’s deadline of 04/22/2026 to pay or object |
| Enforcement Plan | If unpaid by 04/23/2026, Maria files FL-300 |
Scenario 2: David Lopez, Non-Custodial Parent Enrolling Child in Employer Plan
David just changed jobs and must enroll the children in his new employer’s plan within 30 days under the National Medical Support Notice.
| Form Section | What David Enters |
|---|---|
| Caption — Party | DAVID LOPEZ, 1310 KERN ST, FRESNO, CA 93706, SELF-REPRESENTED |
| Court Branch | SUPERIOR COURT OF CALIFORNIA, COUNTY OF FRESNO — CENTRAL DIVISION |
| Petitioner / Respondent | PETITIONER: MARIA LOPEZ / RESPONDENT: DAVID LOPEZ |
| Case Number | 23FL-04821 |
| Item 1 — Insurance Notice | Receives notice; enrolls within 30 days at new HR |
| Item 2 — Assignment | Notes that Maria may assign benefits directly to providers |
| Item 3 — Insurance Info | Mails Maria new Kaiser card, member ID KP998877, group G-44210 |
| Item 5 — Future Requests | Logs Maria’s certified-mail receipts for tracking |
| Item 7 — Enforcement | Acknowledges contempt risk if he ignores future requests |
Scenario 3: Janet and Marcus Chen, Blended Family With Two Support Orders
Janet has two children with Marcus from a prior marriage and one child with her current spouse. The family operates under two separate California support orders.
| Form Section | What Janet Enters |
|---|---|
| Caption — Party | JANET CHEN, 219 WILSHIRE BLVD #4, SANTA MONICA, CA 90401 |
| Court Branch | SUPERIOR COURT OF CALIFORNIA, COUNTY OF LOS ANGELES — STANLEY MOSK COURTHOUSE |
| Petitioner / Respondent | PETITIONER: MARCUS CHEN / RESPONDENT: JANET CHEN |
| Case Number | BD789456 (case 1) and 22STFL-12340 (case 2) |
| Item 3 — Insurance Info | Sends Marcus the Cigna card for the two older children only |
| Item 4 — Reasonable Cost | Splits older children’s bills with Marcus; splits youngest’s bills with current spouse |
| Item 5 — 30-Day Rule | Tracks two separate 30-day clocks, one per case |
| Item 6 — Payment | Pays Marcus’s request for \$214 within 21 days to avoid dispute |
| Enforcement | Files separate FL-300 per case if needed |
How to File the Completed Form
FL-664 is filed with the underlying order, not separately. You file it through whichever channel your county supports for family-law judgments and post-judgment motions. Each channel has its own URL or address, fee, processing time, and proof-of-filing.
E-filing. Most large counties require e-filing. Los Angeles uses File & ServeXpress and One Legal approved vendors, San Francisco uses File & ServeXpress, and Orange County uses its own portal. The filing fee for an attachment to an existing order is \$0; the fee for the underlying motion (such as FL-300) is currently \$60 under the Statewide Civil Fee Schedule. Payment is by credit card. Processing is typically 1–3 court days. Save the e-filing confirmation email as proof of filing.
Mail. Send the original plus two copies and a self-addressed stamped envelope to the clerk. Fee is the same. Processing is 7–14 days. Proof of filing is the conformed copy returned in your SASE. Use certified mail with return receipt for proof of mailing.
Drop-box. Counties such as Sacramento and San Diego maintain after-hours drop boxes at the courthouse. Place the original, copies, fee check, and SASE in a sealed envelope. Processing is 5–10 days. Proof of filing is the conformed copy mailed back.
In person. The courthouse clerk’s window accepts paper filings during business hours. Bring the original plus two copies and your filing fee in cash, check, or card. Processing is same-day for the conformed copy. The conformed copy is your proof of filing.
Always keep the conformed copy for your records, because reimbursement disputes years later turn on whether you can prove the form was attached to the original order.
What Happens After You File
Once FL-664 is attached to the signed order, both parents are bound by the seven notice items and the 30-day reimbursement procedure. The clerk dockets the order with FL-664 as part of it, and the LCSA (if the case is IV-D) updates its file with the medical-support component.
The parent ordered to maintain insurance must then enroll dependents within a reasonable time and provide written insurance details to the other parent under item 3. If the order was issued in a IV-D case, the LCSA serves a National Medical Support Notice on the employer, which has its own 20-business-day response deadline under 42 U.S.C. § 1396g-1.
Reimbursement requests then operate on the 30/30 cycle. The paying parent has 30 days to request; the receiving parent has 30 days to pay or object. Disputes are resolved by the issuing court on a Request for Order (FL-300), which usually takes 6–10 weeks to be heard depending on the county’s calendar.
Failure to comply with FL-664 is enforced through contempt under Code of Civil Procedure § 1218, wage withholding under Family Code § 5246, or a money judgment with 10% interest.
Mistakes to Avoid When Filling Out the Form
- Filing the wrong revision. Using a pre-2012 version is the fastest route to clerk rejection.
- Mismatching the case caption. A caption that does not match the underlying order causes the attachment to be filed in the wrong place.
- Crossing out preprinted text. Editing items 1–7 invalidates the Judicial Council form.
- Forgetting Proof of Service. Without FL-335, the other party can claim no notice.
- Requesting full reimbursement instead of one-half. Doing this gives the other parent grounds to refuse and forces a court motion.
- Skipping the EOB. Without the EOB, “reasonable cost” cannot be calculated, and the request is incomplete.
- Missing the 30-day request window. Late requests support a waiver defense under Family Code § 4063.
- Ignoring a request entirely. Silence supports a contempt finding.
- Lumping medical reimbursement into child-support payments. They are separately enforceable.
- Using small claims court. Family-law reimbursement belongs in the issuing court, not small claims.
- Failing to update address. Notices mailed to a stale address still count as served.
- Assuming verbal notice of insurance suffices. Item 3 requires written disclosure.
Do’s and Don’ts
Do’s
- Do download FL-664 from the Judicial Council forms page every time, because revisions are silent.
- Do attach FL-664 to every support order with a medical component, even if the order seems obvious.
- Do keep certified-mail receipts for every reimbursement request you send.
- Do include the EOB with every itemized bill, because that is what defines “reasonable cost.”
- Do track the 30/30 deadlines on a calendar, because waiver is a real defense.
- Do consult a Family Law Facilitator for free before filing a contempt motion.
Don’ts
- Don’t edit the preprinted notice items, because that voids the Judicial Council form.
- Don’t rely on text-message screenshots as proof of receipt; use certified mail or trackable email.
- Don’t lump unrelated debts into a reimbursement request, because it muddies the calculation.
- Don’t file in small-claims court instead of family court for unpaid reimbursements.
- Don’t assume the LCSA will enforce on its own; you may need to request enforcement.
- Don’t wait beyond 30 days to send a request unless you have a documented emergency.
Pros and Cons of Filing on Your Own vs. With Help
Pros of filing pro se
- Cost savings. No attorney fee for an attachment that is essentially preprinted.
- Speed. You control the timing rather than waiting on a lawyer’s calendar.
- Self-help support. California’s Self-Help Guide walks you through every family-law form for free.
- Direct knowledge of the facts. You know your medical bills better than anyone.
- Empowerment. Many parents who handle FL-664 once handle later motions confidently.
Cons of filing pro se
- Procedural traps. Missing a 30-day deadline can waive thousands in reimbursement.
- Caption errors. Pro se filers more commonly mismatch captions than attorneys do.
- Service mistakes. FL-335 requires a non-party server, which pro se parents often forget.
- Enforcement complexity. Contempt and wage-withholding motions involve specialized rules.
- Emotional cost. Reimbursement disputes can reignite the underlying conflict.
Filing by Mail vs. E-Filing at a Glance
| Factor | Mail Filing | E-Filing |
|---|---|---|
| Fee | Same as e-file (\$0 attachment, \$60 motion) | Same plus small vendor fee |
| Processing time | 7–14 days | 1–3 court days |
| Proof of filing | Conformed copy via SASE | Confirmation email |
| Required in large counties | Optional | Mandatory in LA and others |
| Best for | Filers without reliable internet | Filers needing speed and tracking |
FAQs
Is FL-664 mandatory in every California support case?
Yes. Any support order under Family Code § 3751.5 that addresses health insurance or uninsured medical costs must have FL-664 attached.
Does FL-664 need a separate filing fee?
No. As an attachment to an order, FL-664 carries no separate fee; the fee belongs to the underlying motion or judgment.
Can I edit the seven notice items on FL-664?
No. The Judicial Council preprints items 1–7, and altering them voids the form and risks rejection by the clerk.
Do I write the petitioner’s name in box 1 even if I am the respondent?
Yes. The caption follows the underlying case, so petitioner stays petitioner regardless of who fills out FL-664.
Should I write my address as a P.O. Box on the caption?
No. Use a residential or street address; some counties require it for valid service of court notices.
Is the case number formatted with dashes or spaces?
Yes. Copy the case number exactly as printed on the underlying order, including dashes; spaces are never substituted for dashes.
Does FL-664 require notarization?
No. Judicial Council attachments are not notarized; the judge’s or parties’ signatures on the underlying order incorporate FL-664.
Can I send a reimbursement request by email instead of certified mail?
Yes. Email works if you can prove receipt; certified mail is safer because tracking is automatic and admissible.
Does the 30-day clock start when I pay the bill or when I send the request?
Yes. The 30-day request window starts on the date you pay, and the 30-day payment window starts when the other parent receives your complete request.
Are mental-health and orthodontia bills covered under item 4?
Yes. “Health-care costs” under Family Code § 3751 include mental-health and orthodontia, not just primary care.
Can I offset unpaid reimbursements against my child support?
No. Support and medical reimbursements are separately enforceable, and self-help offsets risk a contempt finding.
Do I have to use the LCSA to enforce FL-664?
No. You may file a Request for Order (FL-300) directly, with or without LCSA involvement.
Does the form expire if my child turns 18?
No. FL-664 stays attached to the order, and reimbursement requests for charges incurred while the order was active remain enforceable as money judgments.
Can both parents claim the same medical bill on different cases?
No. Only the parent who actually paid out of pocket may claim reimbursement for that specific charge.
Related reading
- How to Fill Out FTB Form 3853 (w/Examples) + FAQs
- How to Fill Out California Form FL-192 (w/Examples) + FAQs
- How to Fill Out California Form FL-342 (w/Examples) + FAQs
- How to Fill Out California Form FL-610 (w/Examples) + FAQs
- How to Fill Out California Form FL-630 (w/Examples) + FAQs
- How to Fill Out California Form FL-695 (w/Examples) + FAQs
- How to Fill Out California Form FL-120 (w/Examples) + FAQs