At-Home Paternity Testing in Wyoming: The Statutory Population-Match Rule and the Frozen Support Order

There are no restrictions on at-home DNA testing in Wyoming. Any resident, whether in Cheyenne, Casper, Laramie, or a ranch outside Sheridan, can order a home paternity test kit and receive results without a court order, an attorney, or an agency referral. Testing is a private decision and stays private until someone chooses to share the results. Nothing in Wyoming law limits who may order a kit or what they can do with the results at home.

Wyoming's paternity law does two things you will not find written into most other state codes. First, W.S. § 14-2-402 defines the paternity index — the statistical value labs use to express strength of a match — as a likelihood ratio calculated on the assumption that the tested man is of the same ethnic or racial group as the alleged father. Most states leave that population-matching detail to lab practice. Wyoming writes it into statute. Second, Wyoming imposes a rule that when a signatory challenges a voluntary acknowledgment of paternity, the court generally may not suspend the signatory's ongoing child-support obligation during the challenge unless it makes a specific good-cause finding. Support keeps flowing while the challenge is litigated. Together these two features make Wyoming distinctive.

Below: how Wyoming law defines paternity, how voluntary acknowledgment works, how rescission and challenge play out, how the courts and administrative track handle contested cases, what the Department of Family Services does, and where an at-home test fits into all of it.

How Wyoming Law Defines Paternity

Wyoming's parentage law is codified at Title 14, Chapter 2 of the Wyoming Statutes. Wyoming adopted the 2002 Uniform Parentage Act, and its provisions are found at W.S. §§ 14-2-401 through 14-2-907. That means Wyoming's structure — voluntary acknowledgment, presumptions, adjudication, and genetic testing — tracks the UPA framework used across many peer states, with Wyoming-specific tweaks layered on top.

Paternity actions may be brought by the mother, the alleged father, the child, a support-enforcement agency, or any other person or entity with standing under Article 6 or Article 8 of Chapter 2. Wyoming provides multiple statutory presumptions of paternity in W.S. § 14-2-504, including:

• Birth within marriage (or within 300 days after termination of marriage by death, divorce, or annulment)
• Marriage or attempted marriage after birth, followed by voluntary assertion of paternity
• Residing in the same household with the child during the first two years of the child's life and openly holding the child out as his own

The holding-out presumption is worth flagging. Even without marriage, a man who lives with the mother and child for the first two years and treats the child openly as his own creates a legal presumption that can be difficult to unwind later. If there is any real doubt during that period, that is exactly the time to consider testing.

Voluntary Acknowledgment of Paternity in Wyoming

Unmarried parents in Wyoming can establish legal paternity by signing an Affidavit Acknowledging Paternity under W.S. §§ 14-2-601 through 14-2-612. The affidavit is offered at the hospital shortly after birth and can also be signed later.

• Form: Wyoming Affidavit Acknowledging Paternity
• Filed with: Wyoming Department of Health, Vital Statistics Services (VSS)
• Requirements: Signed by both parents, with the statutory disclosures acknowledged in writing
• Effective date: When filed with VSS
• Legal effect: Once effective and outside the rescission window, the acknowledgment establishes legal parentage with the same force as a court judgment

Because the acknowledgment has the same legal weight as an adjudication, the moment before you sign matters more than any moment after. If there is doubt, an at-home paternity test gives you a private answer before a signature makes the outcome legally binding. You can order a home paternity test kit from US Diagnostics Center for $79, get results in about 7 to 10 business days from order to results, and know before you sign. At-home results are not admissible in Wyoming court, but they are for you — a private answer before the paperwork.

Rescinding or Challenging a Paternity Acknowledgment in Wyoming

Wyoming, following the 2002 UPA, gives signatories two distinct paths out of an acknowledgment: rescission during the initial window, and challenge afterward.

The 60-Day Rescission Window

Under W.S. § 14-2-607, either parent may rescind the acknowledgment within 60 days after its effective date, or by the date of the first hearing in a proceeding to which the signatory is a party before a court to adjudicate an issue relating to the child, including a support proceeding, whichever is earlier. The support-hearing clause matters: a scheduled hearing in a child-support case cuts the 60-day window short even if that hearing happens on day 15.

Rescission is procedural. You file the rescission with Vital Statistics Services and, where applicable, notify the other signatory and any pending court. You do not need to prove fraud or mistake. This is the intended off-ramp for signatories who acted quickly and later want to reconsider.

Challenge After the 60-Day Window

After the rescission window closes, W.S. §§ 14-2-608 and 14-2-609 govern. A signatory may challenge the acknowledgment only on the grounds of fraud, duress, or material mistake of fact, and the action must be brought within two years after the effective date. After two years, the challenge door is generally closed regardless of new information.

Here is where Wyoming diverges from many other states. During any rescission or challenge proceeding, the court may not suspend the signatory's ongoing child-support obligation absent good cause. In practice, that means an alleged father who files a challenge is still expected to make support payments while the case is pending. The support order is functionally frozen in place until the court either dissolves the acknowledgment on the merits or denies the challenge. Some states pause support during a challenge; Wyoming does not, unless the court makes a specific finding that good cause exists. If you are considering a challenge, factor the ongoing payments into your timing.

Wyoming's Paternity Adjudication Process

Contested paternity in Wyoming is resolved in district court under the UPA framework in Article 6 (adjudication) and Article 7 (genetic testing). The action is filed in the district court with jurisdiction over the child or the parties. Standing rests with the mother, the alleged father, the child, or the state through the Department of Family Services.

The court can order genetic testing on the motion of a party or on its own initiative. Once testing is complete, the court applies the UPA's identification standard — a probability of paternity of at least 99% and a combined paternity index of at least 100 to 1 — to enter a paternity finding. Under W.S. § 14-2-823, an adjudication of parentage is binding on all parties who were joined in the case, subject to the UPA's narrow post-judgment challenge rules.

Wyoming also runs an administrative track through the Department of Family Services Child Support Program. In administrative proceedings, DFS can request genetic testing, issue support orders, and refer contested paternity questions to district court when necessary. Most straightforward cases move through the administrative track without ever reaching a courtroom.

Court-Ordered and Administrative Genetic Testing in Wyoming

Article 7 of Chapter 2 (W.S. §§ 14-2-701 through 14-2-710) governs genetic testing in Wyoming paternity cases. The testing standard is what makes Wyoming unusual.

Under W.S. § 14-2-402, "paternity index" is defined as a likelihood ratio calculated using genetic markers and — this is the codified twist — conditioned on the tested man being of the same ethnic or racial group as the alleged father. The population against which the DNA profile is compared has to be the appropriate ethnic or racial reference population for the calculation to comply with the statute. Most states let laboratories select the reference population as a matter of scientific practice. Wyoming ties it to statute. Labs performing paternity testing for Wyoming legal proceedings need to know the appropriate reference group, and the parties should expect that information to be part of the testing record.

The identification standard, drawn from the 2002 UPA and applied through Article 7, is a probability of paternity of at least 99% and a CPI of at least 100 to 1. A properly conducted test excluding the tested man is conclusive that he is not the biological father.

Refusing a court-ordered or administrative test carries consequences. Courts routinely treat refusal as evidence supporting the opposing party's position, and DFS can seek enforcement through the district court. For a broader look at refusal, see our article on what happens if you refuse a paternity test. For a walkthrough of the court process itself, see the court-ordered paternity test process.

Wyoming Department of Family Services Child Support Program

The Wyoming Department of Family Services (DFS) Child Support Program is the state IV-D agency responsible for administering federal child-support enforcement. DFS handles cases automatically when a family receives public assistance, and it opens cases on application from any parent seeking help.

• Establishing paternity through voluntary acknowledgment or referral to district court
• Requesting genetic testing when paternity is in dispute, and seeking a district-court order where required
• Setting child-support orders using Wyoming's guidelines
• Enforcing orders through income withholding, license suspension, tax intercept, and lien authority
• Modifying orders when circumstances change
• Handling interstate cases under UIFSA

If you receive a DFS letter asking you to submit to genetic testing, take it seriously. The administrative process moves whether you respond or not. For a full explanation of how testing intersects with child support, see paternity testing for child support.

At-Home vs. Legal Paternity Testing in Wyoming

At-home and legal paternity tests use the same lab science. Both analyze DNA extracted from cheek-swab samples against a panel of genetic markers. The difference is chain of custody. At-home tests are self-collected, which makes them fast, private, and easy — and inadmissible in court. Legal tests are collected under supervision, with identity verification and documented chain of custody from collection to result.

Use an at-home test when the question is personal: to know before you sign an acknowledgment, to answer a private uncertainty in the family, to inform a decision about how to move forward. Use a legal test when the result needs to hold up in a Wyoming court, in a DFS proceeding, in a birth-record correction, or in an immigration matter.

Many families use both, in sequence. An at-home test first, to answer the private question, then a legal test if the answer creates a legal need. For a full comparison of the two, see home paternity test vs. legal paternity test. US Diagnostics Center's legal paternity testing service is marked Coming Soon; the current at-home kit is for private, informational use.

How At-Home DNA Testing Works

The DNA testing process works the same way regardless of where you live:

1. Order your kit. You can order a home paternity test kit from US Diagnostics Center for $79. The kit ships to your Wyoming address and includes a prepaid return envelope for mailing your samples back.
2. Collect samples. The kit includes cheek swabs for the alleged father and the child. You rub the swab on the inside of each person's cheek for about 30 seconds. No blood, no needles, no pain.
3. Mail samples back. Seal the samples in the provided packaging and drop the prepaid envelope in the mail.
4. Lab analysis. Once the lab receives your samples, processing takes 2-3 business days. Our lab analyzes up to 28 genetic markers — well above the industry standard of 20 or more markers.
5. Get your results. Results are delivered securely online. You'll see either an inclusion (99.99% or greater probability of paternity) or an exclusion (0% probability).

The mother's sample is not required but can strengthen the analysis. A mother's kit can be added during checkout if you want to include it. Express result options are also available during checkout for faster turnaround.

Ordering a Test in Wyoming

US Diagnostics Center ships home paternity test kits to every part of Wyoming. Cheyenne, Casper, Laramie, Gillette, Rock Springs, Sheridan, Green River, Evanston, Riverton, Jackson, and every smaller community and rural address in between. Standard shipping runs 3 to 5 business days, and express shipping in 2 to 3 business days is available at checkout.

US Diagnostics Center is BBB Accredited with an A- rating. Our laboratory analyzes up to 28 genetic markers, which exceeds the industry standard of 20 or more. All testing is performed at an accredited lab, and USDC is pursuing AABB accreditation.

If you have questions before ordering — about who should be tested, whether to include a mother's sample, or whether an express result option makes sense for your situation — the team is available through the contact page. Wyoming customers get the same lab and the same support as customers anywhere in the country.

Frequently Asked Questions

Can I use a home paternity test as evidence in Wyoming court?
No. Home tests do not meet the chain-of-custody requirements for court admissibility. A Wyoming district court considering a paternity question, or the Department of Family Services in an administrative case, will order a fresh test at an accredited facility. Home tests are for private, informational use.

Why does Wyoming law mention ethnic or racial group in the paternity index definition?
Because the statistical calculation used to express strength of a match compares the tested man's DNA profile against a reference population. W.S. § 14-2-402 requires that reference population to be the same ethnic or racial group as the alleged father. Most states treat this as a laboratory practice rather than a statutory requirement. Wyoming writes it into the code.

How long do I have to rescind a Voluntary Acknowledgment of Paternity in Wyoming?
Sixty days from the effective date, or by the date of the first hearing in a proceeding relating to the child at which you are a party, whichever comes first. Because a support hearing can cut the window short, act quickly if you have doubts.

What if I want to challenge an acknowledgment after 60 days?
You may bring a challenge for fraud, duress, or material mistake of fact within two years of the effective date. After two years, the challenge door is generally closed. During the challenge, your child-support obligation continues unless the court makes a specific good-cause finding to suspend it.

Does Wyoming have a marital presumption?
Yes. W.S. § 14-2-504 presumes paternity for a child born during marriage or within 300 days after termination of the marriage. Wyoming also recognizes a holding-out presumption when a man lives with the mother and child during the first two years and openly holds the child out as his own.

Can DFS force me to submit to genetic testing?
DFS can request testing administratively and, when necessary, obtain a court order. Refusal generally results in sanctions and can be treated as evidence supporting paternity in the underlying case.

Related Reading

• At-Home Paternity Testing in Hawaii
• At-Home Paternity Testing in Montana
• At-Home Paternity Testing in Maine: Acknowledgment of Parentage and Multi-Parent Rule
• At-Home Paternity Testing in Delaware: Full UPA Adoption and the Two-Year Challenge Cutoff
• How DNA Testing Works: A Complete Step-by-Step Guide

This article is part of our Paternity Testing: The Complete Guide guide.