Toolkit · Family Law
The Parentage and Paternity Toolkit
42 U.S.C. § 666
- Type
- Toolkit
- Jurisdiction
- National
- Date
- 2024-02-25
- Topic
- Family Law
This toolkit assembles the working materials for a parentage matter into modules that can be lifted and used. It supplies an acknowledgment decision tree for the hospital, a rescission and challenge calculator, a putative father registration prompt, a parentage petition outline, a genetic testing motion framework, a competing-presumptions worksheet, a de facto parent evidence matrix, donor and surrogacy planning grids, a disestablishment screen with the three questions that should precede any petition, a default judgment audit, and a portability review that converts a fragile status into a judgment. Reference tables cover the authorities, the calendar, and the vocabulary that parentage statutes use to mean things they do not say. Every authority cited is linked to its text on uplaw.us.
The Parentage and Paternity Toolkit
Family Law > Parentage | Published 25 February 2024 - Updated 25 February 2026 | UpLaw - uplaw.us
Module 1 takes five minutes in a hospital room. It prevents the majority of what the rest of this toolkit exists to repair.
Keywords: acknowledgment, deadlines, registry, petition, testing, presumptions, de facto, donor, surrogacy, disestablishment, portability
Module 1 — The hospital decision tree
A form has been placed in front of you. Before signing:
1. Is there ANY possibility this child is not biologically yours? ☐ No → continue to question 2. ☐ Yes or unsure → ⛔ DO NOT SIGN TODAY. Say: "I'd like to complete this after a genetic test. How do I complete it later?" Testing takes days. The rescission window cannot be reopened.
2. Is the mother married, or was she married within the last 300 days? ☐ Yes → a marital presumption may already exist. The acknowledgment may require a denial of parentage from the presumed spouse to be effective. Get advice first. ☐ No → continue.
3. Do you understand what this form is? Under 42 U.S.C. § 666, a completed acknowledgment is treated as equivalent to a judicial determination of parentage. It creates support obligations and custody rights. It is a judgment, not paperwork.
4. If signing: ☐ Date recorded: ______ ☐ Form photographed ☐ Rescission deadline calendared: ______ ☐ Filing with vital records confirmed on: ______ ☐ Certified birth certificate obtained
5. Understand what the birth certificate is NOT. An administrative record. Not a judgment. Judgments travel between states; birth certificates issued under a presumption may not. See Module 11.
Module 2 — Rescission and challenge calculator
Acknowledgment signed on: ______ First administrative or judicial proceeding relating to the child in which the signatory is a party: ______
RESCISSION WINDOW — the earlier of the statutory period (commonly 60 days) or that proceeding date. Deadline: ______ ☐ Calendared in three places No reason required during this window. It is the only free exit.
CHALLENGE WINDOW — after rescission closes, requires fraud, duress, or material mistake of fact, frequently capped at 2 years. Outer deadline: ______
Ground analysis: ☐ Fraud — knowing misrepresentation of a material fact, reliance, damage ☐ Duress — coercion overcoming free will (family pressure and hospital circumstances rarely suffice) ☐ Material mistake of fact — ⚠ if the signatory knew there was a possibility and signed anyway, most courts find no mistake
Other clocks: ☐ Marital presumption challenge — often 2 years from birth or discovery: ______ ☐ Putative father registration — often 30 days or less, or before an adoption petition: ______ ☐ Default judgment set-aside — short civil rule: ______ ☐ Establish parentage where no presumed parent exists — frequently open to majority
⚠ Support obligations are not suspended during a challenge, and are not dischargeable in bankruptcy — 11 U.S.C. § 523.
Module 3 — Putative father registration prompt
For any man who believes he may have fathered a child and is not living with the mother.
⚠ Register NOW. The window is often 30 days, or before an adoption petition is filed, and failure generally forfeits the right to notice of an adoption — Lehr v. Robertson, 463 U.S. 248 (1983).
☐ Every state where conception may have occurred: ______ ☐ Every state where birth may occur: ______ ☐ Registration date(s): ______ ☐ Confirmation obtained
From the same day forward, document: ☐ Every offer of support, and every payment ☐ Every attempt at contact, with dates ☐ Every message sent and received ☐ Prenatal involvement — appointments attended, expenses paid
Why this matters. Biology creates an opportunity to develop a protected relationship, not the relationship itself. The cases are consistent: Stanley v. Illinois, 405 U.S. 645 (1972) (a father who parented for eighteen years); Quilloin v. Walcott, 434 U.S. 246 (1978) (a father who did not); Caban v. Mohammed, 441 U.S. 380 (1979) (where the relationship exists, sex distinctions fail); Lehr (the opportunity must be grasped). Delay is the only reliable way to lose.
Module 4 — Parentage petition outline
I. Jurisdiction ☐ Child's home state and every state of residence — 28 U.S.C. § 1738a ☐ Personal jurisdiction over the respondent ☐ Whether the child may be an Indian child — 25 U.S.C. § 1912
II. The route — plead the statutory basis, not the conclusion ☐ Marital presumption ☐ Acknowledgment ☐ Holding out ☐ Genetic connection ☐ Consent to assisted reproduction ☐ De facto or functional
III. Parties ☐ Every presumed parent named — a judgment without them is vulnerable ☐ Guardian ad litem requested where interests diverge ☐ Support agency, if involved
IV. Relief ☐ Adjudication with findings on each element ☐ Genetic testing order ☐ Birth certificate amendment directions to vital records ☐ Custody and parenting time, or express reservation ☐ Support with an effective date ☐ Allocation of testing and fee costs
V. If the respondent cannot be located ☐ Federal Parent Locator Service through the state agency — 42 U.S.C. § 653 ☐ Publication only as a last resort — a judgment on publication is easier to undo later
Module 5 — Genetic testing motion framework
Is a presumption already in force? ☐ No → testing is generally ordered as a matter of course on a sworn request. ☐ Yes → ⚠ testing is discretionary in many states. Brief the equities, not the biology:
Factor Facts Length of the existing relationship Child's age Harm from disruption Petitioner's diligence from the date of doubt Whether a substitute parent exists The child's own understanding Order should specify: ☐ Accredited laboratory ☐ Identification verified ☐ Collection witnessed ☐ Tamper-evident chain of custody ☐ Full report including probability of parentage and tested loci ☐ Cost allocation
Constitutional points: ☐ An indigent party cannot be required to fund testing the state has made central — Little v. Streater, 452 U.S. 1 (1981) ☐ The burden of proof is ordinarily a preponderance — Rivera v. Minnich, 483 U.S. 574 (1987) — not the clear-and-convincing standard applied to termination, Santosky v. Kramer, 455 U.S. 745 (1982)
☐ Refusal of an ordered test → request the adverse inference or default the statute permits. ☐ A consumer ancestry test is a trigger, not evidence. Confirm through a court-ordered test.
Module 6 — Competing presumptions worksheet
Two or more people qualify. Only one outcome is possible. Statutes direct resolution on the weightier considerations of policy and logic.
| Factor | Presumed Parent A | Presumed Parent B |
|---|---|---|
| Basis of the presumption | ||
| Years in the parental role | ||
| Daily care provided | ||
| Financial support provided | ||
| Child's understanding of who this person is | ||
| Third parties who would describe them as a parent | ||
| Diligence from the date each learned the facts | ||
| Harm to the child from displacement | ||
| Candor with the court and the other party |
What decides these cases: duration and quality of the relationship, the child's age and understanding, and harm from disruption. What does not decide them: the laboratory report. Many states expressly authorize denying testing where it would not serve the child's interests.
The controlling precedent for the priority of an intact family unit is Michael H. v. Gerald D., 491 U.S. 110 (1989), and the weight given a fit legal parent's decisions against a non-parent is Troxel v. Granville, 530 U.S. 57 (2000).
Module 7 — De facto parent evidence matrix
All four elements must be proved. Fill in the evidence column before filing.
| Element | What it requires | Evidence you have |
|---|---|---|
| Consent and fostering | The legal parent consented to and fostered the relationship | |
| Cohabitation | Lived with the child | |
| Full parental obligations | Care, education, development — without expectation of payment | |
| Bonded, dependent relationship | Long enough that the child depends on it |
The exhibits that actually persuade: ☐ Photographs across years, not one holiday ☐ School records listing the person as parent or emergency contact — 20 U.S.C. § 1232g ☐ Medical records showing who brought the child and who consented ☐ Third-party testimony — teachers, coaches, pediatricians, neighbors, relatives ☐ Financial records: insurance, tuition, childcare, groceries ☐ Communications using parental language over time ☐ The child's understanding, through a guardian ad litem or in-camera interview
Note the ceiling. Foster parents occupy a narrower position — their interest derives from state law and contract rather than the constitutional parental interest, Smith v. Organization of Foster Families for Equality and Reform, 431 U.S. 816 (1977), within the federal framework at 42 U.S.C. § 671.
Module 8 — Donor and assisted reproduction checklist
Before conception: ☐ Licensed physician used, where the state's donor protection depends on it ☐ Written agreement signed by everyone — donor, recipients, and all spouses ☐ Agreement states expressly: donor is not a parent, no rights, no obligations ☐ Written consent to assisted reproduction signed by both intended parents ☐ Clinic consent forms retained — they frequently double as the statutory record ☐ Contact between donor and child, if any, addressed in writing ☐ Disposition of stored gametes and embryos addressed ☐ Posthumous use addressed expressly, with any required written consent and time limits
⚠ The riskiest configuration in family law: known donor, home insemination, no written agreement. The donor may be a legal parent with support obligations and custody rights, and the intended non-biological parent may be no one.
Withdrawal of consent: generally effective before transfer, generally not after.
Module 9 — Surrogacy planning grid
Answer BEFORE any medical procedure. This module has no useful after-the-fact version.
Question Answer Where will the surrogate reside during pregnancy? Where will the birth occur? Whose law governs the agreement? Does that state validate surrogacy agreements? ☐ Yes ☐ Void ☐ Silent Are pre-birth orders available there? Genetic or gestational? Will the child cross state lines after birth? Validity requirements to confirm: ☐ Agreement executed before any medical procedure ☐ Independent counsel for the surrogate, paid by intended parents — a validity requirement in several states, not a courtesy ☐ Medical and mental-health evaluations completed ☐ Residency or treatment nexus satisfied ☐ Surrogate's age, prior-birth, and health requirements met
Terms the agreement must address: ☐ Medical decision-making ☐ Health insurance ☐ Life insurance ☐ Compensation and expenses ☐ Multiple gestation ☐ Termination and selective reduction ☐ Disposition if intended parents die or separate ☐ Birth certificate completion ☐ Post-birth contact
☐ Parentage order filed pre-birth or immediately after ☐ Interstate compact approval obtained before the child moves — non-compliance can void a placement ☐ Genetic (traditional) surrogacy: expect a post-birth revocation period and an adoption
Module 10 — Disestablishment screen
Three questions BEFORE the petition. Answer them in writing.
1. What is the goal? ☐ End future support ☐ End the relationship ☐ Establish a truth These are different goals with different costs, and the petition serves only some of them.
2. What happens to the child? ☐ One legal parent ☐ Reduced household income ☐ Is there a substitute father — known, available, and solvent? ______
3. What does the existing case need? In a custody dispute, a long parenting history is an asset. Converting yourself into a non-parent forfeits it.
Then run the elements: ☐ Standing under the statute ☐ Timeliness — rescission window, then the fraud-duress-mistake window ☐ A ground — and note that knowing of the possibility and signing anyway is usually not a mistake ☐ Diligence from the date of doubt ☐ The child's best interests, required in a growing number of states
☐ Guardian ad litem requested ☐ Client advised that disestablishment operates prospectively — arrears survive, and a state reimbursement claim may be unaffected ☐ Client advised that support continues during the challenge
Module 11 — Portability review
The single most valuable module for a family that is not in litigation.
What is this family's parentage resting on?
Instrument Travels between states? Action Adoption decree Yes — a judicial proceeding None needed Parentage adjudication Yes None needed Filed acknowledgment after the window Generally yes Verify filing Birth certificate under a presumption Not reliably Obtain a judgment De facto or functional status Rarely Obtain a judgment Nothing at all No Obtain a judgment Married same-sex couples: both spouses belong on the birth certificate — Pavan v. Smith, 582 U.S. 563 (2017), and the sex-discrimination logic of Bostock v. Clayton County, 590 U.S. 644 (2020) points the same way — and the non-birth parent should still complete a confirmatory adoption. A few thousand dollars, a few months, and it is the cheapest insurance in family law.
The supporting document set: ☐ Wills naming children individually, not by class ☐ Beneficiary designations updated ☐ Guardianship or parental designation for a non-legal co-parent, where permitted ☐ Medical consent authorizations ☐ School records designation — 20 U.S.C. § 1232g ☐ Powers of attorney and directives — Executing a Durable Power of Attorney and Advance Directive: A Practical Checklist ☐ Travel authorization letters ☐ Housing protections noted — familial status is protected by 42 U.S.C. § 3604
Module 12 — Default judgment audit
1. Date of judgment: ______ ← the first question, not the biology 2. Return of service: ☐ Personal ☐ Substituted ☐ Publication 3. Address served: ______ Client's actual address on that date: ______ 4. Date client learned of the judgment: ______ How: ______ 5. Set-aside window under state rule: ______ Deadline: ______ 6. Showing required: ☐ Excusable neglect ☐ Meritorious defense ☐ Both 7. Arrears to date: $______ ⚠ frequently survive a successful vacatur 8. Public assistance reimbursement claim? ☐ Yes → the state's claim may be unaffected 9. Enforcement in progress: ☐ Wage withholding ☐ Tax intercept ☐ License suspension ☐ Passport denial ☐ Client advised not to stop paying while the motion is pending ☐ Protected-benefit analysis run — 42 U.S.C. § 407
Module 13 — Intake questionnaire
☐ Marital status at conception and at birth, with dates ☐ Acknowledgment signed? By whom, when, filed? ☐ Any court order naming a parent — including a default support order ☐ Genetic testing performed? By whom, arranged how? ☐ Who has lived with the child, and since when ☐ Assisted reproduction? What paperwork exists? ☐ Indian Child Welfare Act question — ask in EVERY case — 25 U.S.C. § 1915 ☐ Adoption pending or contemplated? ☐ Every state the child has lived in ☐ Immigration status of child and parents — 8 U.S.C. § 1101, 8 U.S.C. § 1401, 8 U.S.C. § 1409 ☐ Dependency case open? ☐ Every deadline calendared at intake
Reference table — the authorities
| Provision | Subject |
|---|---|
| 42 U.S.C. § 666 | Acknowledgment as a judicial determination; rescission and challenge |
| 42 U.S.C. § 654 | State plan; establishment services |
| 42 U.S.C. § 652 | Federal oversight and funding |
| 42 U.S.C. § 653 | Federal Parent Locator Service |
| 42 U.S.C. § 671 | Foster care state plan |
| 25 U.S.C. § 1912 | ICWA notice and standards |
| 25 U.S.C. § 1915 | ICWA placement preferences |
| 28 U.S.C. § 1738a | Custody order enforcement |
| 22 U.S.C. § 9001 | International abduction remedies |
| 18 U.S.C. § 1204 | International parental kidnapping |
| 20 U.S.C. § 1232g | School records access |
| 8 U.S.C. § 1101 | Immigration definitions of child and parent |
| 8 U.S.C. § 1401 | Citizenship at birth |
| 8 U.S.C. § 1409 | Non-marital children and citizenship |
| 11 U.S.C. § 523 | Support obligations not dischargeable |
| 42 U.S.C. § 407 | Benefit protection from creditors |
| 42 U.S.C. § 405 | Social Security records |
| 42 U.S.C. § 3604 | Familial status in housing |
Leading cases: Michael H. · Lehr · Stanley · Caban · Quilloin · Troxel · Little v. Streater · Rivera v. Minnich · Santosky · Smith v. OFFER · Pavan · Nguyen v. INS, 533 U.S. 53 (2001) · Sessions v. Morales-Santana, 582 U.S. 47 (2017).
Reference table — the calendar
| When | What |
|---|---|
| At birth | Module 1 |
| Within days | Module 3 registration; acknowledgment filing confirmed |
| Within 60 days | Rescission window — Module 2 |
| Before conception | Modules 8 and 9 — no after-the-fact version exists |
| On learning of doubt | Module 10, and diligence from that date |
| Within 2 years | Fraud, duress, mistake challenges |
| On any support summons | Appear. Module 5 testing request |
| On discovering a default | Module 12, immediately |
| Any time, if not in litigation | Module 11 |
Reference table — what the words mean
| The term | What it actually means |
|---|---|
| "Acknowledgment of paternity" | A judgment, after a short window |
| "Rescission period" | The only free exit — commonly 60 days |
| "Material mistake of fact" | Not "I knew it might not be mine and signed anyway" |
| "Presumed parent" | A legal status, rebuttable only on narrow grounds and short clocks |
| "Holding out" | Received the child into the home and openly treated the child as one's own |
| "De facto parent" | Consent · cohabitation · full obligations without pay · a bonded relationship |
| "Intended parent" | Consented to assisted reproduction with intent to parent — paperwork is the parentage |
| "Disestablishment" | Prospective. Arrears survive |
| "Putative father registry" | An obscure office with a 30-day clock and permanent consequences |
| "Birth certificate" | An administrative record. Not a judgment |
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