Child Discipline Laws in Washington State: Limits, CPS, and Charges

Child discipline laws in Washington state allow a parent or guardian to use physical force to correct a child, but only when that force is “reasonable and moderate.” The standard comes from RCW 9A.16.100, and anything beyond it can be prosecuted as assault.¹ The statute also lists specific acts that are presumed unreasonable no matter the circumstances.

What “Reasonable and Moderate” Means

RCW 9A.16.100 gives parents and guardians a legal defense when they use physical force to restrain or correct a child. Without that defense, deliberate contact that causes pain would meet the definition of assault.¹

Whether force qualifies as reasonable and moderate is judged on objective circumstances: the child’s age, size, and physical or mental condition, and where on the body any injury appears.¹ A swat that might be moderate for a twelve-year-old can be unreasonable for a toddler. The force also has to serve a corrective purpose. Striking a child out of anger or frustration, rather than to correct behavior, falls outside the defense even when the contact itself is light.

Acts That Are Presumed Unreasonable

The statute names specific acts that are presumed unreasonable when used to discipline a child:¹

Throwing, kicking, burning, or cutting a child
Striking with a closed fist
Shaking a child under age three
Interfering with breathing
Threatening with a deadly weapon
Any act likely to cause, and that does cause, bodily harm greater than brief pain or minor temporary marks

The last item is the catch-all, and it does most of the work in actual cases. Bruises, welts, cuts, or any mark that doesn’t fade quickly will push discipline into the presumptively unreasonable category. The list is illustrative rather than exhaustive, so an act not named can still be found unreasonable based on the circumstances.

Using an object to strike a child is a serious risk factor even though the statute does not call it out by name. Belts, switches, and similar implements are far more likely to leave marks that outlast brief redness. Open-hand spanking that leaves no lasting marks has the strongest claim to the defense, but even that turns on the child’s age, size, and where the contact landed.

Who Else Can Physically Discipline a Child

A babysitter, relative, or other non-parent caregiver has no independent authority to use physical discipline. Under RCW 9A.16.100, a non-parent may use reasonable and moderate physical force only if the parent or guardian authorized it in advance.¹ Without that prior authorization, any physical discipline by a caregiver is unlawful. Even with it, the same reasonable-and-moderate standard and the same presumptions still apply.

Institutions caring for children do not inherit the parental privilege. Washington bans corporal punishment in every public school; no district employee or contractor may inflict physical pain on a student as discipline. Staff may use reasonable physical force only to maintain order or prevent harm to the student, others, or property.² Licensed childcare providers face broader restrictions still, with regulations barring spanking, verbal abuse, shaming, threats, and any discipline meant to cause fear or humiliation, along with withholding food or restricting bathroom access as punishment. Foster care rules follow the same pattern, prohibiting physical punishment, cursing, threats, intimidation, and any discipline that interferes with a child’s basic needs.³

What Happens When Discipline Crosses the Line

Unlawful discipline can trigger two separate processes at once: a civil investigation by Child Protective Services and criminal prosecution. They run on parallel tracks, and anything said in one can be used in the other.

CPS Investigations

CPS, which operates under the Department of Children, Youth, and Families, can interview a child at school, daycare, or anywhere else suitable, without parental permission or advance notice. When a report alleges immediate danger, CPS must begin investigating within 24 hours. The agency has up to 90 days from the report to complete its investigation.⁴

If CPS issues a “founded” finding, it can impose a safety plan that may restrict a parent’s contact with the child. In more serious cases, CPS can file a dependency petition asking a judge to take jurisdiction over the child’s welfare. A dependency case can result in foster placement while the parent completes services such as parenting classes or counseling before reunification is considered.

Criminal Charges

Criminal prosecution is separate from the CPS process. Washington’s assault-of-a-child statutes apply when the accused is 18 or older and the victim is under 13, and they come in three tiers:

Third degree, a Class C felony, covers conduct meeting the definition of third-degree assault against a child under 13. Penalties reach up to five years in prison and a $10,000 fine.⁵⁶
Second degree, a Class B felony, applies when someone intentionally assaults a child under 13 and causes bodily harm beyond brief pain or minor marks, combined with a prior pattern of assaultive behavior or inflicting pain equivalent to torture. Penalties reach up to 10 years in prison and a $20,000 fine.⁷⁶
First degree, a Class A felony, covers intentional assaults on a child under 13 that recklessly cause great bodily harm, or that involve a pattern of conduct resulting in substantial bodily harm or pain equivalent to torture. Penalties reach up to life in prison and a $50,000 fine.⁸⁶

These child-specific charges require the victim to be under 13. When the child is older, prosecutors can still bring standard assault charges under Washington’s general assault statutes, but the child-specific enhancements and their steeper penalties no longer apply.

If CPS or Police Contact You

Parents often feel blindsided when a CPS caseworker arrives, and the instinct to cooperate fully without preparation is understandable. If a dependency petition is filed, you have the right to a lawyer, and the court will appoint one at no cost if you cannot afford one. You also have the right to attend every hearing, hear the evidence against you, present your own evidence, and examine witnesses. The judge’s decision must rest solely on evidence presented at the hearing.⁹

You can view and get copies of the records DCYF plans to use in the proceeding, at no cost. If you skip a hearing, the judge will proceed without your input. Because the criminal investigation runs separately, statements made to a caseworker can surface in a prosecution later. Speaking with an attorney before giving detailed statements to CPS or law enforcement is one of the most consequential choices a parent in this position can make.

1
Washington State Legislature. Washington Code 9A.16.100 – Use of Force on Children, Policy, Actions Presumed Unreasonable
2
Washington State Legislature. Washington Administrative Code 392-400-825 – Corporal Punishment, Restraint, and Isolation
3
Legal Information Institute. Washington Administrative Code 110-148-1615 – What Are the Requirements for Disciplining Children
4
Washington Law Help. Guide to Child Protective Services (CPS) and Dependency Cases
5
Washington State Legislature. Washington Code 9A.36.140 – Assault of a Child in the Third Degree
6
Washington State Legislature. Washington Code 9A.20.021 – Maximum Sentences for Crimes Committed July 1, 1984, and After
7
Washington State Legislature. Washington Code 9A.36.130 – Assault of a Child in the Second Degree
8
Washington State Legislature. Washington Code 9A.36.120 – Assault of a Child in the First Degree
9
Washington State Attorney General. Information of Rights Dependency Proceedings