A dormant statute is a law Congress never repealed but that prosecutors and courts stopped enforcing — sometimes for a century or more. These laws remain fully valid as written. They carry the same legal force as any actively enforced statute, even though no one has used them in generations.
Dormant statutes raise a distinct democratic accountability problem. The current Congress never voted to enforce them, and the public may not know they exist. When political actors revive a dormant statute, they can impose restrictions that would face fierce opposition if proposed as new legislation — avoiding the democratic process entirely by pointing to a law that was already "on the books."
The Comstock Act of 1873 is the most prominent current example. Its prohibition on mailing items "for producing abortion" went largely unenforced for decades after Roe v. Wade. After the Supreme Court overturned Roe in 2022, advocates began arguing the Comstock Act bars mailing mifepristone and misoprostol nationwide. If courts accept that reading, a 150-year-old statute would effectively create a national abortion ban — without Congress ever casting a vote.
Dormant statutes let political actors bypass the democratic process by reviving old laws instead of passing new ones. When enforcement depends on which statutes prosecutors choose to dust off, legal outcomes can shift dramatically based on political priorities — with no legislative debate, no public hearing, and no vote.
People often assume that if a law hasn't been enforced for decades, it's no longer valid. It is — unless Congress specifically repealed it, a dormant statute remains fully enforceable. The passage of time alone doesn't invalidate a law, which is why old statutes can be weaponized long after the political context that created them has changed.
Dormant statutes let political actors bypass the democratic process by reviving old laws instead of passing new ones. When enforcement depends on which statutes prosecutors choose to dust off, legal outcomes can shift dramatically based on political priorities — with no legislative debate, no public hearing, and no vote.
People often assume that if a law hasn't been enforced for decades, it's no longer valid. It is — unless Congress specifically repealed it, a dormant statute remains fully enforceable. The passage of time alone doesn't invalidate a law, which is why old statutes can be weaponized long after the political context that created them has changed.