Concealed Carry in National Park Buildings: A New Lawsuit Challenging This Ban

If you’ve ever carried a firearm in a national park—or even considered it—you’ve likely run into a confusing reality: you may be legal until you step inside a building.

That line, often invisible and poorly understood, is exactly what a new federal lawsuit is aiming to challenge.

Let’s break it down.

The Law at the Center: 18 U.S.C. § 930(a)

At the heart of the issue is 18 U.S.C. § 930(a), a federal statute that makes it illegal to possess a firearm in a “federal facility.”

A federal facility is broadly defined as a building owned or leased by the federal government where federal employees regularly perform official duties.

In the context of national parks, that includes:

• Visitor centers
• Ranger stations
• Fee collection buildings
• Administrative offices

So while the park itself may be open to lawful carry depending on applicable state and local law, these buildings are treated as gun-free zones under federal law.

Yes, You May Be Able to Carry in National Parks (Depending on State Law)

This is where precision matters.

In 2010, a major change to federal law, signed by President Obama, aligned national park firearm rules with the laws of the state in which the park is located.

That means if you can legally possess and carry a firearm under applicable state and local law, then you may generally carry within the park itself.

We’ve covered that in more detail here: How to Safely Travel With Your Firearm to National Parks.

But—and this is critical—that change did not override 18 U.S.C. § 930(a).

So today’s reality looks something like this:

• Walking a trail? Potentially legal, depending on state and local law
• At your campsite? Potentially legal
• Stepping into a visitor center? Federal crime

The Parking Lot Problem Most People Miss

Here’s where things get even more restrictive—and where many gun owners unintentionally could get tripped up.

Federal courts have interpreted 18 U.S.C. § 930(a) to apply not just to buildings, but also to areas considered part of the federal facility, including certain adjacent parking areas.

In practical terms, that can mean parking your vehicle in a lot tied to a visitor center or federal building while a firearm remains inside the vehicle may still create legal risk under federal law.

Why does that matter? Because it creates a near-impossible situation in some parks.

• You drive into the park legally under state law
• But many access points, trailheads, and services are tied to federal facilities
• Which means parking and entering those areas can put you in violation

In other words, it’s not just the buildings. It’s the infrastructure around them that complicates lawful carry.

This Isn’t a New Legal Fight

Challenges to federal gun-free zones in government buildings are not new.

A recent example we covered involved post offices, where a federal court pushed back on similar restrictions: Post Office Gun Ban Unconstitutional? Federal Court Blocks Enforcement for Some.

That case questioned whether places like post offices truly qualify as “sensitive places” under the framework established by the Supreme Court.

And that brings us to the current lawsuit.

The New Lawsuit: Zimmerman v. Bondi

The Second Amendment Foundation has filed a federal lawsuit known as Zimmerman v. Bondi.

This case directly challenges the application of 18 U.S.C. § 930(a) to national park facilities.

If the official complaint is publicly available when you publish, it would be worth linking directly to the lawsuit here as well.

What the Lawsuit Argues

At its core, the lawsuit makes a focused constitutional argument: not all government buildings automatically qualify as “sensitive places” where firearms can be banned.

The case relies heavily on the Supreme Court’s decision in New York State Rifle & Pistol Association v. Bruen, which requires that firearm restrictions be grounded in historical tradition.

The Second Amendment Foundation’s position is that places like:

• Visitor centers
• Ranger stations
• Permit offices

are not analogous to historically restricted locations like:

• Courthouses
• Prisons
• Legislative assemblies

Instead, these are public-facing facilities, open to ordinary citizens, and lacking the kind of security or historical precedent that would justify a ban.

The Real-World Impact for Gun Owners

This is not just a legal theory. It affects everyday decisions for armed citizens.

As the law stands today, a responsible gun owner may be forced to:

• Disarm before entering a building
• Leave a firearm unattended in a vehicle
• Avoid certain park services entirely

Combine that with the parking lot issue, and it creates a difficult balancing act. Gun owners are left trying to remain compliant while navigating areas where the legal boundaries are not always obvious.

What Happens Next?

Like many Second Amendment cases after Bruen, this lawsuit will likely turn on a key question: do national park buildings—and their associated areas—truly qualify as sensitive places?

If the courts say no, the outcome could:

• Expand lawful carry into these facilities
• Narrow the definition of sensitive places
• Open the door to challenges in other federal locations

Bottom Line

Right now, the law requires careful navigation.

• Carry in national parks is governed by state and local law
• But federal law still restricts firearms in certain buildings and potentially surrounding areas

Zimmerman v. Bondi is a direct challenge to that framework.

And if successful, it could remove one of the most confusing and restrictive barriers facing armed citizens on federal land.