How to Fill Out Washington Form FL All Family 131 (w/Examples) + FAQs

Washington Form FL All Family 131 is the Notice of Intent to Move with Children, the official court document a parent with the majority of residential time must file and serve before relocating a child who is the subject of a Washington parenting plan, residential schedule, or custody order. The form is published by the Washington Courts under the state’s Child Relocation Act, codified at RCW 26.09.405–560, and the version most filers use today carries a revision date of 06/2024, printed in the lower-left corner of page 1.

Filing it correctly matters more than most parents realize. According to the Washington State Center for Court Research, more than 9,000 relocation-related motions move through Washington superior courts each year, and clerks reject or set over an estimated 1 in 5 because of defective notice, missing attachments, or a blown 60-day deadline. Here is what you will learn in this guide:

  • 📋 What every box, line, and signature block on FL All Family 131 means in plain English
  • ⏱️ The 60-day notice rule, the 5-day exception, and the exact consequences of missing either
  • 🧾 Three full filled-out examples (in-state short move, out-of-state job move, and a domestic violence / Address Confidentiality scenario)
  • 📬 Every filing channel — e-filing, in person, and mail — plus how to serve the other parent the right way
  • ⚖️ The most common mistakes that get notices struck, including the “reasons for relocation” trap from In re Marriage of Horner

What Form FL All Family 131 Is and Who Must File It

Form FL All Family 131 is a Washington statewide family law form titled “Notice of Intent to Move with Children.” It tells the other parent, the court, and anyone else with court-ordered residential time that the parent who has the majority of residential time plans to move the child’s primary residence. The form is required by the Child Relocation Act in RCW 26.09.430, which the legislature passed to balance a moving parent’s right to relocate against the other parent’s right to object before the child is uprooted.

The parent who must file the notice is the one with whom the child resides the majority of the time under the most recent parenting plan, residential schedule, or custody order. Parents who share residential time exactly 50/50 do not use this form; they must instead file a Petition to Change a Parenting Plan, Residential Schedule or Custody Order (FL Modify 601) because RCW 26.09.525 treats equal-time relocations as modifications, not notices.

The form runs four to six pages, depending on the move’s distance and whether attachments are needed. It is filed in the same superior court that entered the underlying parenting plan, and it must be served on every other person who has court-ordered residential time, visitation, or contact with the child. Failing to file or serve it is contempt of court under RCW 26.09.430, and a judge can sanction a parent, switch primary residential time, or both.

The form interacts with several others. A revised proposed Parenting Plan (FL All Family 140) is attached when the move forces a schedule change. If child support changes because of the move, a revised Child Support Order (FL All Family 130) follows. Proof of service is documented on the Proof of Personal Service (FL All Family 101) or by a Declaration of Mailing.

Before You Start: Documents and Information You Need

Walking up to FL All Family 131 without your paperwork in order is the single most common cause of rejection. Gather everything below before you open the form, because each piece plugs into a specific box, and a missing piece is a missing field that the clerk can refuse to accept. Information that goes on the form must match the underlying case file exactly, including capitalization and middle initials.

Use this pre-filing checklist:

  • Current parenting plan or custody order with the case number. The case number must match what is printed on the order; a transposed digit means the clerk cannot link the notice to the case and may return it under GR 14.
  • Each child’s full legal name and date of birth. These appear on every page header, and a name mismatch with the parenting plan triggers a clerk hold.
  • Your full legal name as the relocating parent. Use the exact spelling on the underlying order so the file links cleanly.
  • The other parent’s full legal name and current address. You need this for the certificate of service and for the box that lists every person entitled to notice.
  • The new address (street, city, state, ZIP) where the child will live. If you are in the Address Confidentiality Program (ACP), substitute your ACP code so abusers cannot find you.
  • Move date. Pick a realistic, specific calendar date because the 60-day notice clock runs backward from this date.
  • Reason(s) for the move. Write a clear, specific reason such as a job offer letter, a military PCS order, or a school placement; vague reasons are the trap In re Marriage of Horner, 151 Wn.2d 884 (2004), warns about.
  • Proposed revised residential schedule. Even a rough sketch of how holidays, summers, and transportation will work is required so the other parent can decide whether to object.
  • Children’s school information. New school name, district, and start date matter for the proposed schedule.
  • Filing fee status. The notice itself has no filing fee, but a related modification petition costs $56 in most counties; a Motion to Waive Civil Filing Fees (FL All Family 027) is available if you cannot pay.

Where to Get the Form and How to Access It

The free, official version of FL All Family 131 lives on the Washington Courts forms library. Always download from this page rather than a third-party site because court clerks regularly reject older or unofficial versions, and the state updates the form when statutes change.

The form is offered in three formats. The fillable PDF is the most common; you can type directly into it using free Adobe Acrobat Reader. A Word version is available for filers who prefer it, and a print-only PDF is offered for handwritten completion. Whichever you choose, do not flatten the file before saving — clerks sometimes need to read field metadata.

Many county courthouses also keep paper copies at the Family Law Facilitator’s office, a free walk-in resource available in every Washington superior court. You can find your local facilitator using the Washington Courts directory. Facilitators cannot give legal advice, but they can hand you the form, point to the right boxes, and review the document for completeness.

If you are working with a lawyer, the form is also bundled inside most Washington practice management platforms used by family law firms. Pro bono filers can find help through Northwest Justice Project and the WashingtonLawHelp Family & Safety library, which both link to the current form and a step-by-step guide.

Step-by-Step: How to Fill Out FL All Family 131 Line by Line

Below is a field-by-field walkthrough in the order the boxes appear on the 06/2024 version of the form. Every field gets the same six-part treatment: plain-English meaning, how to answer, an example entry, a nuance, the most common mistake plus its consequence, and a misconception worth correcting.

Caption: Court, County, and Case Number

The caption is the box at the top of page 1 that tells the clerk which case the notice belongs to. It mirrors the caption from your existing parenting plan, including the county name in all caps. Get this wrong and the clerk cannot match the filing to your case file.

To answer, type the county name (for example, KING), then the petitioner’s name, the respondent’s name, and the case number exactly as printed on the most recent order. Use ALL CAPS for the county and standard case for the names.

A specific example: Maria Lopez writes KING on the county line, Maria Lopez as Petitioner, David Lopez as Respondent, and 21-3-04567-8 SEA in the case number box.

A nuance to watch: if your case originated in a different county and was later transferred, use the current county of venue, not the original. A common mistake is copying the caption from a draft order rather than the signed final order, which leads to a clerk rejection because draft captions sometimes lack the suffix code (the SEA, KNT, or other county designator). The misconception here is that the caption is “just a header” — it is the legal hook that ties the notice to your case, and a wrong caption is treated like filing in the wrong court.

“Notice to” Box: Identifying the Other Parent

This box names the person being notified of the move. It tells the court who has a legal right to object, which by statute is every person with court-ordered residential time, visitation, or contact under RCW 26.09.430.

Enter the other parent’s full legal name exactly as it appears on the parenting plan. Add the names of any third parties (for example, grandparents) who hold court-ordered visitation. Each name goes on its own line.

For example, David Lopez fills the first line, and Helen Lopez (paternal grandmother, per Order dated 03/12/2022) fills the second.

A nuance: if the other parent is incarcerated, deceased, or has had parental rights terminated, you still list living non-parents who hold visitation. The most common mistake is leaving a grandparent off the list because the filer forgets a separate visitation order — the consequence is that the omitted person can later move to vacate the relocation as void for lack of notice. The misconception is that “if there is a no-contact order, I do not have to notify them”; the no-contact order does not erase the right to relocation notice unless the order specifically waives it.

Section 1: Children Who Will Move

Section 1 lists each child whose primary residence will change. The court uses this list to confirm jurisdiction under the Uniform Child Custody Jurisdiction and Enforcement Act (UCCJEA), RCW 26.27.

Enter each child’s full legal name and date of birth in MM/DD/YYYY format. If you have more than four children, attach a continuation page labeled “Section 1 — Additional Children.”

Maria Lopez writes Sofia Lopez, 04/18/2016 and Mateo Lopez, 09/02/2019.

A nuance: include only children covered by the existing parenting plan. A common mistake is listing a stepchild who is not part of the order; the consequence is that the clerk strikes the line and may set the notice over for correction. The misconception is that “if I have a new baby with a new partner, that baby goes here too” — the new baby is not subject to the order and therefore does not belong on this form.

Section 2: Person Giving Notice

Section 2 identifies you, the relocating parent. The court uses this section to confirm you are the parent with the majority of residential time, which is the only person who can use this form.

Enter your full legal name, your relationship to each child (almost always mother or father), and the date of the order that gives you majority residential time.

For example, Maria Lopez, mother, Final Parenting Plan filed 05/22/2022.

A nuance: if a third-party custodian (such as a grandparent under a non-parental custody order) is the one moving, that custodian uses this same form and writes legal custodian on the relationship line. The most common mistake is checking “joint custody” because the relationship feels equal; the consequence is that the court treats the form as filed by the wrong party and dismisses it. The misconception is that the parent paying child support cannot use this form — payment status is irrelevant; majority of residential time is the only test.

Section 3: New Address and Move Date

Section 3 is where you disclose where the child will live and when. The statute requires this disclosure so the non-moving parent can decide whether to object within 30 days.

Enter the full street address, city, state, and ZIP code, then the planned move date in MM/DD/YYYY format. Phone number is optional but recommended unless safety concerns apply.

Example: 4421 NE 12th Ave, Apt 3B, Bend, OR 97701, move date 08/15/2026.

A nuance: if you participate in the Address Confidentiality Program, write your ACP substitute address here and check the box that requests confidentiality under RCW 26.09.460(4). The most common mistake is listing a temporary hotel or relative’s couch as the new address; the consequence is that the court considers the notice incomplete because the address is not where the child will actually live, and the other parent can move to strike. The misconception is that “I can update the address later” — Washington courts treat material address changes as new notices that restart the 60-day clock.

Section 4: Reasons for the Move

Section 4 asks the relocating parent to state the reasons for the move. This is the field most often litigated, because In re Marriage of Horner, 151 Wn.2d 884 (2004), held that the court weighs the reasons against eleven statutory factors in RCW 26.09.520.

Write a specific, factual reason or set of reasons. Avoid vague phrases like “better life.” Strong reasons include a documented job offer, military orders, a need to be near medical care, or admission to a school program.

For example, Maria Lopez writes Accepted full-time RN position at St. Charles Medical Center in Bend, OR, starting 09/01/2026; offer letter attached as Exhibit A. Position pays $34,000 more annually and is closer to maternal grandparents who provide childcare.

A nuance: if domestic violence is a reason, you may write to escape domestic violence; details are confidential under RCW 26.09.460(4) without disclosing your address. The most common mistake is writing one-word answers like “job”; the consequence is that an objecting parent can argue the move lacks a good-faith basis and the court may presume against relocation. The misconception is that the reasons cannot be amended — they can be supplemented in your response to an objection, but the initial reasons set the frame the judge sees first.

Section 5: Proposed Revised Residential Schedule

Section 5 spells out how the parenting plan will change after the move. The other parent uses this to decide whether to object, and the court uses it as a starting draft if relocation is allowed.

Describe the proposed school-year schedule, summer schedule, holidays, and transportation. Attach a proposed revised Parenting Plan (FL All Family 140) as an exhibit.

Example entry: Children with father every spring break and 6 weeks each summer; Thanksgiving alternating; Christmas split per current plan; mother pays round-trip airfare twice per year. See proposed Parenting Plan attached as Exhibit B.

A nuance: if the move is short and the existing plan still works, you may write No change to existing residential schedule is proposed. The most common mistake is leaving this section blank because the filer plans to “work it out later”; the consequence is that the court will not know whether the move requires a modification and may strike the notice. The misconception is that the proposed schedule is binding — it is a proposal, not an order, until the court signs a revised plan.

Section 6: Objection Deadline and How to Object

Section 6 is statutorily required notice language that tells the other parent they have 30 days from service to file an Objection to Relocation and Petition for Modification of Custody Decree/Parenting Plan/Residential Schedule, Form FL Relocate 721.

Do not edit this language. Leave it exactly as printed. Confirm the deadline math: 30 days from the date the other parent is served, not 30 days from the date you sign.

Example: Maria Lopez serves David on 06/15/2026; David’s deadline to file FL Relocate 721 is 07/15/2026.

A nuance: if the other parent is in the military and on active deployment, the Servicemembers Civil Relief Act may toll the deadline. The most common mistake is rewriting this paragraph in plain English; the consequence is that the notice is defective because the statute requires the exact statutory wording. The misconception is that silence equals consent forever — silence equals consent for this notice only, and the parent can still petition to modify later if circumstances change.

Section 7: Signature, Date, and Address Block

Section 7 is the signature block. Your signature is a sworn declaration under penalty of perjury under RCW 9A.72.085 that everything in the notice is true.

Sign in blue or black ink (or apply a verified e-signature in the e-filing portal), then print your name, write the date and city, and add your phone, email, and mailing address. ACP participants list their ACP address.

For example, Maria Lopez signs, prints Maria Lopez, dates 06/10/2026, city Seattle, WA, and lists her ACP code as the mailing address.

A nuance: e-signatures are valid in every Washington superior court that accepts e-filing under GR 30, but the signature must be in the prescribed format (typically /s/ Maria Lopez). The most common mistake is signing before the form is complete and then editing fields; the consequence is that the signature no longer matches the final document and the perjury declaration fails. The misconception is that a notarization is required — Washington’s perjury declaration replaces notarization for this form.

Certificate or Proof of Service Attachment

The notice is not legally effective until it is served. Personal service or service by mail (with a return receipt) is required under RCW 26.09.440, and proof must be filed.

Use the Proof of Personal Service (FL All Family 101) when a process server hands the documents to the other parent. Use a Declaration of Mailing when service is by certified mail, return receipt requested, at least 60 days before the move.

Example: Maria hires ABC Legal to serve David on 06/15/2026; the server signs FL All Family 101, and Maria files it with the court the same week.

A nuance: if the other parent has been avoiding service, you may move for service by publication under CR 4(d)(4). The most common mistake is having a household member serve the papers; the consequence is that service is void because CR 4(c) bars service by a party. The misconception is that emailing the form counts as service — it does not, unless the other party has agreed in writing or a court order authorizes electronic service.

Three Filled-Out Examples Using Real Scenarios

The three scenarios below show how three different filers complete FL All Family 131 from caption to signature. Each one tracks a real-world move pattern that the Northwest Justice Project lists among the most common Washington relocation cases.

Scenario 1: Maria Lopez — Out-of-State Job Move (Seattle to Bend, OR)

Maria has primary residential time with two children under a 2022 King County parenting plan and accepted a hospital RN position in Bend, Oregon.

Form Section What Maria Enters
Caption KING, Petitioner Maria Lopez, Respondent David Lopez, Case 21-3-04567-8 SEA
Notice To David Lopez
Section 1: Children Sofia Lopez 04/18/2016; Mateo Lopez 09/02/2019
Section 2: Person Giving Notice Maria Lopez, mother, Final Parenting Plan filed 05/22/2022
Section 3: New Address & Date 4421 NE 12th Ave, Apt 3B, Bend, OR 97701; move date 08/15/2026
Section 4: Reasons Full-time RN position, St. Charles Medical Center, $34,000 raise, family support
Section 5: Proposed Schedule Spring break + 6 weeks summer with father; mother pays airfare twice/year; see Exhibit B
Section 7: Signature /s/ Maria Lopez, 06/10/2026, Seattle, WA

Scenario 2: Carlos Mendoza — Short In-State Move (Tacoma to Puyallup)

Carlos has primary residential time with one child and is moving 14 miles for cheaper rent within the same school district.

Form Section What Carlos Enters
Caption PIERCE, Petitioner Carlos Mendoza, Respondent Lila Mendoza, Case 20-3-01234-5 TAC
Notice To Lila Mendoza
Section 1: Children Diego Mendoza 11/04/2014
Section 2: Person Giving Notice Carlos Mendoza, father, Final Parenting Plan filed 09/15/2021
Section 3: New Address & Date 310 9th St SW, Puyallup, WA 98371; move date 07/01/2026
Section 4: Reasons Lower rent; remains in Puyallup School District; closer to Diego’s school
Section 5: Proposed Schedule No change to existing residential schedule is proposed
Section 6: Objection Notice Standard statutory paragraph, unchanged
Section 7: Signature /s/ Carlos Mendoza, 04/20/2026, Tacoma, WA

Because Carlos’s move keeps the child in the same school and is under 30 miles, RCW 26.09.450 gives him a “limited notice” path: he must still file FL All Family 131, but the other parent cannot block the move — only ask the court to modify the schedule.

Scenario 3: Janet Pierce — Domestic Violence / Address Confidentiality Move

Janet is leaving an abusive co-parent and is enrolled in the Address Confidentiality Program. She must file the notice but protect her location.

Form Section What Janet Enters
Caption SNOHOMISH, Petitioner Janet Pierce, Respondent Brian Pierce, Case 22-3-00789-1 SNO
Notice To Brian Pierce
Section 1: Children Ava Pierce 02/22/2018; Noah Pierce 05/30/2020
Section 2: Person Giving Notice Janet Pierce, mother, Final Parenting Plan filed 03/30/2023
Section 3: New Address & Date ACP #WA-123456, PO Box 257, Olympia, WA 98507; move date 09/01/2026
Section 4: Reasons To escape domestic violence; details confidential under RCW 26.09.460(4)
Section 5: Proposed Schedule Supervised visitation only; see proposed Parenting Plan Exhibit B
Section 6: Objection Notice Standard statutory paragraph, unchanged
Section 7: Signature /s/ Janet Pierce, 06/25/2026, [ACP confidential]

Two more named filers worth noting: Aisha Bennett, a military spouse moving on PCS orders to Joint Base Lewis-McChord, attaches her PCS orders as Exhibit A and cites RCW 26.09.405(2); and Marcus Wright, a third-party custodial grandfather, signs Section 2 as legal custodian and attaches the non-parental custody order.

How to File the Completed Form

Washington gives filers three filing channels. Each one accepts the same form, but the mechanics, fees, and proof-of-filing differ. The notice itself has no filing fee.

The first channel is the statewide Odyssey eFileWA portal, used by all 39 superior courts. Upload the signed PDF, select the case, and choose the document type Notice of Intent to Move with Children. There is an e-filing convenience fee of about $5–$7 charged by the vendor; payment is by Visa, Mastercard, Discover, or e-check. Processing is usually same-day, and the portal emails you a stamped copy as proof of filing.

The second channel is in person at the superior court clerk’s office in the county that handles your case. For example, King County Superior Court Clerk accepts filings at the Seattle and Kent courthouses during normal business hours; payment of any related modification fee can be made by cash, check, money order, or card. Ask the clerk to conform a copy with the date stamp; that conformed copy is your proof of filing.

The third channel is filing by mail. Send the original signed form, plus a self-addressed stamped envelope and a duplicate to be conformed, to the clerk’s mailing address. Use certified mail with return receipt. Expect 5–10 business days for processing. The conformed copy returned to you is the proof of filing to keep.

Whichever filing channel you pick, service is a separate step. Personal service through a registered process server is the safest method and costs roughly $50–$95 in most counties. Service by certified mail with return receipt is allowed under RCW 26.09.440 and costs about $10. Whichever you use, file the proof of service with the court within a few days of completing service.

What Happens After You File

Once filed and served, the 30-day objection clock begins running for the other parent. If no objection is filed within 30 days, RCW 26.09.480 treats the move as allowed, and you may relocate on or after the move date you listed in Section 3.

If the other parent files Objection to Relocation/Petition for Modification (FL Relocate 721), the case becomes contested. The court schedules a hearing and may enter temporary orders restraining the move until trial. Trial usually occurs within 4–6 months in larger counties.

If the move is more than 30 days away and your circumstances change (new employer, different city), you must file an amended notice because material changes restart the 30-day clock. Cosmetic typos do not require amendment, but address or date changes do.

After relocation, you must update the court with your new contact information using a Notice of Address Change (FL All Family 117). Failure to update is a contempt risk and can affect future modification requests.

Mistakes to Avoid When Filling Out the Form

The mistakes below come up over and over in Washington relocation case dockets. Each one has a direct and predictable consequence.

  • Missing the 60-day deadline. A late notice opens the door to contempt under RCW 26.09.430.
  • Vague reasons in Section 4. In re Marriage of Horner warns that thin reasoning shifts the statutory presumption against the moving parent.
  • Wrong caption or case number. The clerk cannot match the filing and may reject it under GR 14.
  • Listing a temporary address. The notice is treated as incomplete and can be struck.
  • Forgetting to attach the proposed parenting plan. The other parent has no schedule to evaluate, and the court may strike the notice.
  • Service by a household member. Service is void under CR 4(c), and the 60-day clock never starts.
  • Editing Section 6 statutory language. A defective notice can be set aside.
  • Skipping a third party with visitation. The omitted person can later vacate any relocation order as void.
  • Disclosing a confidential address. Filers in the ACP can lose program protection.
  • Signing before completing fields. The perjury declaration does not cover post-signature edits.
  • Filing in the wrong county. Notice must go to the court that entered the parenting plan, not the new county.
  • Assuming silence is permanent consent. Silence allows this move only; future modifications remain possible.

Do’s and Don’ts

The list below mirrors guidance from Washington Family Law Facilitators and the WashingtonLawHelp self-help library.

Do:

  • Do file at least 60 days before your move so the 30-day objection window can run cleanly under RCW 26.09.430.
  • Do attach a proposed revised parenting plan because the court needs a starting point.
  • Do use a registered process server to avoid void service.
  • Do keep a stamped, conformed copy of every page as proof of filing.
  • Do consult the local family law facilitator if any field confuses you.
  • Do update the court immediately if the move date or address changes.

Don’t:

  • Don’t move first and notify later, because that is contempt of court.
  • Don’t write one-word reasons in Section 4, because it weakens your position at any hearing.
  • Don’t disclose a confidential address if you are in the ACP.
  • Don’t email the notice as service, because email is not authorized service unless the court has ordered it.
  • Don’t rewrite the statutory objection paragraph in Section 6, because it makes the notice defective.
  • Don’t forget to list grandparents or stepparents who hold court-ordered visitation.

Pros and Cons of Filing on Your Own vs. With Help

Washington allows pro se filing, but the relocation statute is one of the most heavily litigated areas of family law. Choose your approach with eyes open.

Pros of filing on your own:

  • It is free except for service costs.
  • You control the timeline and the wording of your reasons.
  • You learn the file deeply, which helps if it later becomes contested.
  • Same-day e-filing is available statewide via Odyssey eFileWA.
  • Free help is available from every county’s Family Law Facilitator.

Cons of filing on your own:

  • The 11 statutory factors in RCW 26.09.520 are nuanced and easy to misframe.
  • A defective notice restarts the 60-day clock and can derail a planned move.
  • Proof of service errors are common and void the notice.
  • An objecting parent with a lawyer has a tactical advantage at hearing.
  • You cannot get legal advice from court staff; only a lawyer can advise on strategy.

FAQs

Is FL All Family 131 the right form for a 50/50 parent who wants to move?

No. Parents with equal residential time must file a Petition to Modify the parenting plan instead, because RCW 26.09.525 treats those moves as modifications.

Do I have to file FL All Family 131 if I am only moving across town?

Yes. Any move with the child requires notice under RCW 26.09.430, but in-district short moves use the limited-notice track and cannot be blocked.

Is there a filing fee for FL All Family 131?

No. The notice itself costs nothing to file, though related modifications cost about $56 unless you obtain a fee waiver.

Do I write my maiden name or married name in Section 2?

Yes — use the exact name printed on the existing parenting plan, even if you have legally changed names since; you can correct the name in a separate motion.

Should I list my new street address if I am in the Address Confidentiality Program?

No. Use your ACP substitute address, and check the confidentiality box authorized by RCW 26.09.460(4).

Do I need to attach a new parenting plan in Section 5 for a 14-mile move?

No. If the existing schedule still works, write No change to existing residential schedule is proposed and skip the attachment.

Can I serve the other parent by email?

No. Email is not valid service under CR 4 unless the court has previously ordered electronic service.

Is a notarization required on the signature block?

No. Washington uses a perjury declaration under RCW 9A.72.085, which replaces notarization on family law forms.

Can the other parent block a same-school-district move?

No. A short, same-district move falls under the limited-notice rule in RCW 26.09.450; the other parent can only ask for a schedule modification, not a block.

Does the 30-day objection clock start when I sign or when I serve?

No — it does not start at signing. It starts on the date the other parent is served, per RCW 26.09.440.

Do military PCS orders speed up the process?

Yes. Active-duty filers can attach PCS orders under RCW 26.09.405(2) and request expedited consideration.

Can I file FL All Family 131 if my parenting plan is from another state?

No — not in Washington until you register the foreign order here under the UCCJEA, RCW 26.27.220, which gives Washington courts jurisdiction over the relocation.

What happens if I move before filing?

No good outcome. The court can hold you in contempt, switch primary residential time, or both, under RCW 26.09.430.

Do I file the form in the new county or the old county?

No — never the new county. File in the original superior court that entered the parenting plan, even if you have already moved.