Why these three cases matter to you
Every state page on this site, every reciprocity rule, every "sensitive location" restriction you've read about — all of it sits downstream of three Supreme Court decisions. Heller established that the Second Amendment protects an individual's right to a gun, not just a militia's. McDonald made that right apply to state and local governments, not just the federal government. Bruen extended it from your home onto the public street — and rewrote the legal test courts use to decide if any gun law is constitutional at all.
District of Columbia v. Heller
Washington, D.C. had banned handgun possession in the home outright, and required any lawfully-owned long gun to be kept unloaded and either disassembled or trigger-locked — making it essentially impossible to use a firearm for self-defense even where it was technically legal to own one. Dick Heller, a D.C. special police officer who carried a gun on duty but couldn't legally keep one at home, sued.
What it didn't do: Heller was explicit that the right "is not unlimited" — the opinion specifically preserved laws barring gun possession by felons and the mentally ill, restrictions on carrying in "sensitive places" like schools and government buildings, and conditions on commercial firearm sales. It also didn't address whether this right applied beyond the home, or whether it applied to state governments at all — D.C. is a federal enclave, not a state, so that second question stayed open.
McDonald v. City of Chicago
Heller answered the question for the federal government and D.C. — but Chicago had a handgun ban just as strict, and Chicago argued the Second Amendment simply didn't apply to cities and states at all. Otis McDonald, a 76-year-old retired maintenance engineer who'd been burglarized multiple times in his Chicago neighborhood, sued alongside the NRA to find out.
This is a narrower-sounding holding than it might seem, but it's the one that made Heller actually matter nationwide. Without McDonald, a city like Chicago could have kept its handgun ban in place indefinitely, since Heller technically only bound the federal government. Justice Thomas agreed with the outcome but wrote separately, arguing the right should flow from the Fourteenth Amendment's Privileges or Immunities Clause instead of Due Process — a legal theory question that mattered to scholars more than to anyone trying to keep a handgun at home, but one that still gets debated in later cases.
New York State Rifle & Pistol Association v. Bruen
New York's century-old Sullivan Act required anyone wanting a concealed carry license to prove "proper cause" — a special need for self-protection beyond what the general public faced. In practice, this meant local licensing officials had broad discretion to simply deny ordinary applicants. Robert Nash and Brandon Koch, both legally eligible and background-checked, were denied unrestricted licenses anyway. They sued, with the New York State Rifle & Pistol Association backing the case.
Bruen did something bigger than resolve one New York law, though: it threw out the legal test most federal courts had been using for 14 years to decide any Second Amendment case (a two-step balancing test weighing the government's interest against the burden on gun rights). In its place, the Court established the "text, history, and tradition" test: if the plain text of the Second Amendment covers your conduct, the government can only justify restricting it by showing the restriction is consistent with how firearms were historically regulated in America, not by arguing the restriction serves a good modern policy goal.
This single change reshaped gun law litigation nationwide. Within weeks, California, Hawaii, New Jersey, and other "may-issue" states directed officials to stop requiring proper-cause showings. New York itself responded by passing the Concealed Carry Improvement Act (CCIA) — replacing "proper cause" with new training and background requirements, while creating one of the most extensive "sensitive places" lists in the country. That same pattern — shall-issue now required, paired with an expanded list of places where carry is newly restricted — played out in several other previously-restrictive states, and is the direct reason several state pages on this site describe "significant restrictions remain post-Bruen."
📍 What this means for the carry law you're looking at today
Every "shall-issue" state you see on this site exists in roughly its current form because of Bruen — discretionary "may-issue" denial is no longer a constitutionally available option anywhere in the country. But Bruen didn't deregulate everything: it explicitly preserved the idea of "sensitive places" from Heller, and states have spent the years since arguing — often in ongoing litigation — about exactly how far that category can stretch. That's why states like New York, New Jersey, California, and Hawaii still show up as "highly regulated" on this site's map even after Bruen: the discretionary licensing is gone, but expansive sensitive-places lists took its place, and courts are still actively deciding which of those restrictions survive the "text, history, and tradition" test.
Frequently asked questions
Did Bruen make concealed carry legal everywhere?
No. Bruen struck down discretionary "may-issue" licensing and established that states must use an objective process for issuing permits — but states can still require a permit at all (shall-issue), and can still restrict carry in "sensitive places." It didn't create permitless carry anywhere; that's a separate, state-by-state legislative choice unrelated to this case.
Is the "text, history, and tradition" test the same in every court?
In principle, yes — it's binding on all federal and state courts. In practice, applying it has been contentious: courts have reached different conclusions about what counts as a sufficiently similar historical analogue for a modern law, leading to a wave of inconsistent lower-court rulings on issues like "sensitive places," magazine limits, and who can be barred from possessing firearms. Expect continued Supreme Court involvement to resolve these splits.
Does Heller mean any law restricting guns is unconstitutional?
No — Heller explicitly said the opposite. The majority opinion specifically preserved laws barring possession by felons and the mentally ill, restrictions in sensitive places, and conditions on commercial sales, describing the right as "not unlimited."
What happened after Bruen — is the law still changing?
Yes, significantly. Lower courts are still working through what counts as a constitutionally permissible "sensitive place" and what historical analogues are close enough to justify modern restrictions. The Supreme Court has continued to weigh in on related questions since Bruen (for example, addressing federal firearms restrictions for those under domestic violence protective orders in a 2024 case). This is an active, unsettled area of law — treat any specific claim about "what Bruen requires" for a novel situation as provisional until a court has actually ruled on it.