Legal Details
Federal Buildings Firearms Prohibition
| Identification | |
|---|---|
Citation | 18 U.S.C. § 930 |
| Code Sections |
|
| Jurisdiction | |
Territory | United States (Federal) |
Administered By |
|
| Key Provisions | |
| |
| Applicability | |
| Applies To | All individuals entering or present on federal property, including permit holders and civilians |
| Exemptions |
|
| Penalties | Up to one year federal prison for simple possession; up to five years if intent to use is established; permanent federal record affecting future gun ownership; substantial fines |
Related Laws | |
Federal Buildings Firearms Prohibition
Legal information and analysis
From The Boise Gun Club Handbook
Disclaimer: This information is for educational purposes only and does not constitute legal advice. Always consult current federal law and seek qualified legal counsel for specific situations.
That quick trip to the post office can land you in federal prison if you're carrying—even with a concealed carry permit. 18 U.S.C. § 930 doesn't care about your permit status, and violations are federal crimes that stick with you forever.
- Post offices are the biggest trap: They're everywhere and you visit them for routine stuff
- No permit exception: Federal law trumps state permits every time
- Entire property is off-limits: Not just the building—the parking lot too
I've watched too many good people get jammed up because they forgot they were carrying when they walked into a post office. The feds take this seriously, and "I didn't know" won't save you.
Federal law prohibits firearms and dangerous weapons in most federal facilities under 18 U.S.C. § 930. This covers every federal building where employees regularly work—post offices, Social Security offices, IRS buildings, military recruiting stations, federal courthouses.
The law casts a wide net beyond just guns. "Dangerous weapons" includes pepper spray, mace, stun guns, tasers, and knives depending on how the feds interpret things that day. They're not messing around.
Where You Can't Go Armededit
Common Federal Buildings
Before you leave the house, think about where you're going. Mailing packages? That's a post office—federal building. Meeting about Social Security benefits? Federal building. Getting help with taxes at the IRS office? Federal building.
Timeline of federal building firearm prohibition evolution
| Federal Building Type | Examples | Parking Areas |
|---|---|---|
| Post Offices | USPS branches, mail processing facilities | Entire parking lot |
| IRS Offices | Tax assistance centers, field offices | All federal property |
| Social Security | Local SSA offices, disability centers | Complete premises |
| Federal Courthouses | District courts, appeals courts | All grounds |
| Military Recruiting | Army, Navy, Air Force stations | Entire facility |
| VA Facilities | Hospitals, benefits offices | Full property |
| Immigration Offices | USCIS, ICE field offices | All federal land |
Property Boundaries
The prohibition extends to the entire federal property, not just inside the building. That parking lot at the post office is still federal property. Your car parked there while you buy stamps? Still illegal.
Federal facilities are supposed to post signs at public entrances referencing § 930, but don't count on seeing them. The law applies whether there's a sign or not.
What's Actually Prohibited
- Firearms - All types, regardless of permit status
- Pepper spray and mace - Chemical defensive weapons
- Stun guns and tasers - Electronic weapons
- Knives - Depending on federal interpretation
- Other weapons - At federal discretion
Criminal Penalties
| Violation Level | Prison Time | Additional Consequences |
|---|---|---|
| Simple Possession | Up to 1 year | Federal record, fines |
| Intent to Use | Up to 5 years | Enhanced penalties |
| Repeat Offender | Enhanced sentencing | Permanent gun rights loss |
| Multiple Weapons | Consecutive terms | Asset forfeiture possible |
Federal firearms violations create permanent records that follow you forever. No permit, no matter how valid at the state level, provides protection under federal law.
Who Gets a Passedit
Law Enforcement Exemptions
Law enforcement officers acting in official capacity get exemptions, but that's narrower than most cops think. Off-duty doesn't automatically count, and retired LEOs aren't covered unless they're on official business.
Current Legal Challenges
Some federal judges are pushing back on parts of this law, especially regarding post offices. Recent court challenges have questioned whether Congress can restrict carry in every federal building.
But until the Supreme Court weighs in definitively, assume the law applies everywhere federal employees work.
How I Handle Itedit
I keep a mental map of every federal building in my area. When I'm running errands, I plan my route around federal facilities. If I need to hit the post office, I either leave my gun at home or park across the street on private property.
Decision flowchart for handling federal building visits while armed
The "keep it in the car" approach sounds smart until you realize that parking lot is still federal property. You need to be completely off federal land—find a parking spot across the street or down the block.
Common Mistakesedit
Don't fall for these myths that keep circulating at gun stores and online forums:
Permit Misconceptions
| Dangerous Myth | Reality | Risk Level |
|---|---|---|
| "My permit covers federal buildings" | Federal law trumps state permits | High |
| "No sign means it's okay" | Law applies regardless of signage | High |
| "Just the building is restricted" | Entire property is off-limits | High |
| "Recent court cases fixed this" | Cases pending, law still in effect | Medium |
| "Off-duty cops are exempt" | Must be on official business | Medium |
Risk Assessment
When in doubt, leave it at home. The inconvenience of being unarmed for 30 minutes beats federal prison time and losing your gun rights permanently.
The bottom line: Some fights aren't worth having, and this is one of them.
Resourcesedit
- 18 U.S.C. § 930 - Full text of federal law
- DHS FAQ on Prohibited Weapons at Federal Facilities
- National Archives - Items Prohibited in Federal Facilities
- Local federal facilities - contact individual buildings for specific policies
- Qualified attorney - for legal advice on specific situations
Last Updated: 2026-01-15
See Alsoedit
- Ace Hardware of Sandusky(Sandusky, MI)
- New Philly Sportsman Specialities(New Philadelphia, OH)
- Atwoods Ranch & Home #46(LACY LAKEVIEW, TX)
- G & P Distributors(McConnellsburg, PA)
This is not legal advice
This guide provides general information about federal and state firearms laws based on publicly available statutes. Laws change frequently and vary significantly by state. Always verify current laws in your jurisdiction. Consult a qualified attorney for legal advice on your specific situation. When in doubt, contact local law enforcement or state police.
Loading comments...