Active consent is a freely given, affirmative agreement by a competent person to a specific activity, and under federal law “lack of verbal or physical resistance does not constitute consent.”1Office of the Law Revision Counsel. 10 USC 920 – Art. 120. Rape and Sexual Assault Generally The idea shifts the legal question away from whether a person pushed back and toward whether they actually agreed. That shift matters in criminal cases, in the workplace, in a doctor’s office, and increasingly on every website you click through.
The clearest statutory definition sits in military law. Under 10 U.S.C. § 920(g)(7), consent must be freely given, must reflect actual agreement to the specific conduct at issue, and must come from a competent person. The same statute spells out what does not count: a refusal expressed in words or conduct, submission produced by force or fear, and a prior dating or sexual relationship or the way a person was dressed.1Office of the Law Revision Counsel. 10 USC 920 – Art. 120. Rape and Sexual Assault Generally A growing number of states have adopted similar affirmative-consent language in their criminal codes.
The Four Elements of Valid Consent
Whether the setting is a sexual encounter, a medical procedure, a contract, or a privacy policy, legally valid consent shares four features. If any one is missing, the agreement may carry no legal weight.
Voluntary
Consent must be given without pressure, manipulation, threats, or coercion. Compliance is not the same as willingness. In contract law, a deal signed under duress is voidable by the person who was coerced, and the same logic runs through every other area of consent law.
Informed
A person can only agree to something they actually understand. That means knowing the nature of the activity and its significant risks. The requirement is sharpest in medical and consumer settings, where the law imposes specific disclosure obligations before agreement becomes meaningful.
Specific
Consent applies to the particular activity discussed. Agreeing to one thing does not create a blanket permission for related or escalating activities. Each distinct act needs its own agreement.
Ongoing
Consent is a live condition, not a one-time event. It must be present throughout an activity, and the person who gave it can withdraw it at any point. Once revoked, the other side must stop; continuing after revocation is treated the same as never having had consent at all.
What Invalidates Consent
Even when a person appears to agree, several circumstances strip that agreement of legal force.
Coercion or duress voids consent. Federal law is explicit that submission caused by force, threat of force, or fear does not count as consent.1Office of the Law Revision Counsel. 10 USC 920 – Art. 120. Rape and Sexual Assault Generally In contracts, duress makes the agreement voidable by the coerced party.
Fraud or deception also destroys consent. If a person agrees based on false information or deliberate concealment of material facts, they have not truly agreed to what is actually happening.
Incapacity removes the ability to consent in the first place. The statute puts it plainly: “A sleeping, unconscious, or incompetent person cannot consent.”1Office of the Law Revision Counsel. 10 USC 920 – Art. 120. Rape and Sexual Assault Generally Intoxication does not automatically equal incapacity, but when someone is impaired to the point they cannot understand or communicate, they cannot consent.
Who Cannot Legally Consent
Certain people are deemed unable to give valid consent regardless of what they say or do.
Minors fall into this category by statute. Every state sets an age of consent for sexual activity, ranging from 16 to 18 depending on the jurisdiction. Federal law imposes a 30-year mandatory minimum sentence for sexual acts involving children under 12.2Office of the Law Revision Counsel. 18 USC 2241 – Aggravated Sexual Abuse For online privacy, the Children’s Online Privacy Protection Act treats anyone under 13 as unable to consent to the collection of their personal information and requires verifiable parental consent instead.3Office of the Law Revision Counsel. 15 USC 6502 – Regulation of Unfair and Deceptive Acts and Practices in Connection with the Collection and Use of Personal Information from and About Children on the Internet
Incapacitated individuals cannot consent while they are unconscious, asleep, or impaired to the point of being unable to understand what is happening. Federal sexual abuse statutes specifically criminalize sexual acts with a person “incapable of appraising the nature of the conduct” or “physically incapable of declining participation in, or communicating unwillingness to engage in” the act.4Office of the Law Revision Counsel. 18 USC 2242 – Sexual Abuse
People with certain cognitive disabilities may lack the mental capacity to understand what they are agreeing to. When a person has a legal guardian or authorized representative, that representative may need to act on their behalf, depending on the context.
Active Consent in Sexual Conduct
Federal law treats sexual activity without consent as a serious felony. Under 18 U.S.C. § 2241, aggravated sexual abuse carries a sentence of any term of years up to life when force, threats of death or serious injury, or kidnapping are involved, with a 30-year mandatory minimum when the victim is a child under 12.2Office of the Law Revision Counsel. 18 USC 2241 – Aggravated Sexual Abuse Under 18 U.S.C. § 2242, sexual abuse through fear, coercion, or with someone incapable of consenting also carries a sentence of any term of years up to life. That statute specifically covers a sexual act done “without that other person’s consent, to include doing so through coercion.”4Office of the Law Revision Counsel. 18 USC 2242 – Sexual Abuse State penalties vary but follow the same pattern.
Active Consent in the Workplace
Workplace law frames the question slightly differently. The Equal Employment Opportunity Commission defines sexual harassment as unwelcome sexual advances, requests for sexual favors, and other verbal or physical conduct of a sexual nature.5U.S. Equal Employment Opportunity Commission. Sexual Harassment The operative word is “unwelcome,” not “nonconsensual.” A worker might tolerate behavior or go along with it without that behavior being welcome.
Harassment becomes illegal when it is severe or frequent enough to create a hostile work environment, or when it leads to an adverse employment action like termination or demotion.5U.S. Equal Employment Opportunity Commission. Sexual Harassment Isolated minor incidents or offhand teasing generally do not clear that bar. The underlying consent principle still holds: appearing to go along with workplace conduct does not mean a person agreed to it, and power dynamics between a supervisor and a subordinate make genuine voluntary agreement harder to establish.
Informed Consent in Medicine
Medical treatment requires a specific form of active consent known as informed consent. Before a procedure, a healthcare provider must disclose enough information for the patient to make a meaningful decision. That typically includes the nature of the proposed treatment, its risks and benefits, available alternatives, and the consequences of declining treatment.
A patient who signs a consent form without receiving this information has not given legally valid consent, even with a signature on the page. Performing a procedure without informed consent can support a medical malpractice claim or, in some circumstances, a claim for battery. This area of consent law is almost entirely about information rather than force: the patient is willing, but their willingness only counts if they knew what they were agreeing to.
Active Consent in Digital Transactions
Consent rules have expanded into the digital world, and the law now expects affirmative agreement rather than passive acceptance.
Electronic Signatures and Records
The federal Electronic Signatures in Global and National Commerce Act requires consumers to affirmatively consent before a business can substitute electronic records for paper. Before taking that consent, the business must give the consumer a clear statement about their right to receive paper copies, how to withdraw consent, and what hardware or software they need to access the electronic version. The consumer must then confirm consent in a way that demonstrates they can actually access the electronic format.6Office of the Law Revision Counsel. 15 USC 7001 – General Rule of Validity
Children’s Online Privacy
Under COPPA, any website or online service that knowingly collects personal information from children under 13 must first obtain verifiable parental consent.3Office of the Law Revision Counsel. 15 USC 6502 – Regulation of Unfair and Deceptive Acts and Practices in Connection with the Collection and Use of Personal Information from and About Children on the Internet The FTC does not mandate a single verification method, but whatever method is used must be “reasonably designed in light of available technology to ensure that the person giving the consent is the child’s parent.”7Federal Trade Commission. Verifiable Parental Consent and the Children’s Online Privacy Rule
Dark Patterns and Manipulated Consent
The FTC has targeted “dark patterns,” which it defines as design practices that trick or manipulate users into choices they would not otherwise make. These tactics undermine active consent by exploiting cognitive biases, burying key terms behind hyperlinks, mislabeling transaction buttons, or auto-enrolling consumers in subscriptions without clear agreement.8Federal Trade Commission. Bringing Dark Patterns to Light
The FTC’s position is that companies must obtain “an affirmative, unambiguous act by the consumer” and cannot treat acceptance of a general terms-of-service document containing unrelated information as valid consent to a specific purchase or subscription.8Federal Trade Commission. Bringing Dark Patterns to Light A pre-checked box or a misleading “Next” button that quietly processes a transaction does not produce legally defensible consent.
How to Revoke Consent
Because consent is ongoing, a person can withdraw it, and the activity or communication must stop once they do. The principle runs across every legal context, from intimate interactions to commercial communications, and several federal statutes attach specific deadlines to revocation.
Under the CAN-SPAM Act, when a recipient opts out of commercial emails, the sender has 10 business days to stop sending. The sender also cannot sell or transfer that email address after receiving the opt-out.9Office of the Law Revision Counsel. 15 USC 7704 – Other Protections for Users of Commercial Electronic Mail Under the Telephone Consumer Protection Act, the FCC adopted a rule requiring callers and texters to honor revocation requests made through any reasonable method, with full compliance for that provision pushed to April 11, 2026.10Federal Communications Commission. Order Granting Limited Waiver of 47 CFR 64.1200(a)(10)
The practical point across every setting is the same. Consent is a live condition, not a historical fact. The moment it disappears, the legal permission it granted disappears with it.