Ant Keeping Laws in the USA: What Every Keeper Needs to Know

If you keep ants in the United States, you have probably wondered at some point whether what you are doing is legal. The short answer is: yes, ant keeping is legal. But there are real rules around how ants move across state lines, which species are off-limits, and what happens when you order from an online vendor. This guide breaks it all down in plain terms so you can keep legally and responsibly.

Why the USDA Regulates Ants

The U.S. Department of Agriculture regulates the interstate movement of all ant species through its Animal and Plant Health Inspection Service (APHIS). The reason is straightforward: ants can be serious plant pests. If a non-native species gets established somewhere it does not belong, it can outcompete native ants, damage crops, harm native plants, and cost enormous amounts of money to control or eradicate. The USDA has seen this play out with imported fire ants across the South, and they have no interest in repeating the experience with other species.

The legal authority for this comes from 7 CFR Part 330, which covers the movement of plant pests. Ants fall under this umbrella. Violations can result in substantial civil or criminal penalties, cancellation of any permits you hold, and denial of future permit applications.

The PPQ 526 Permit: Who Needs It

The key document in ant keeping law is the PPQ 526 permit, issued by USDA-APHIS Plant Protection and Quarantine. This permit is required for any person or business that imports ants from outside the US, ships ants across state lines, or sells ants to customers in other states.

As a hobbyist buying ants for personal use, you generally do not need to hold a PPQ 526 permit yourself. What matters is that the vendor you are buying from has one. Reputable US ant vendors like AntGear hold USDA permits for specific species in specific states. When you place an order, you should only be able to complete the purchase if the vendor has a valid permit to ship that species to your state. If a vendor is shipping to any state without mentioning permits at all, that is a red flag worth paying attention to.

That said, there is an important caveat: when you import ants from an overseas vendor, you become the importer of record. That means the responsibility for having the required permits shifts to you. Overseas sellers are often unaware of US import regulations, so if you are ordering internationally, contact APHIS at Pest.Permits@usda.gov or call (301) 851-2285 before placing the order.

The average processing time for a PPQ 526 application is around 127 days, so this is not something you sort out at the last minute. Applications go through APHIS eFile at efile.aphis.usda.gov.

Federally Restricted Species: Imported Fire Ants and Other Invasives

Some species carry heavier restrictions than a standard PPQ 526 permit. The most prominent example is the imported fire ant, which includes Solenopsis invicta (red imported fire ant), Solenopsis richteri (black imported fire ant), and their hybrids. These species are under a federal quarantine established by 7 CFR Part 301, Subpart P.

The quarantine covers large portions of the South and Southeast, including Alabama, Arkansas, California, Florida, Georgia, Louisiana, Mississippi, North Carolina, Oklahoma, South Carolina, Tennessee, Texas, Virginia, and Puerto Rico. Within quarantined areas, regulated articles like soil, nursery stock, and sod cannot be moved out of the area without specific certification. Moving live fire ants across state lines intentionally would fall under far stricter scrutiny, and as a practical matter no reputable vendor sells them as pets for good reason. If you want to read about fire ants without keeping them, see our post Why You Shouldn't Keep Fire Ants.

Other invasive species that receive heightened regulatory attention include the little fire ant (Wasmannia auropunctata), the Argentine ant (Linepithema humile), and various other non-native species that APHIS evaluates case by case when a permit application comes in. As a general principle, the USDA will not approve interstate movement of a species that is not native to the destination state. Vendors confirm this in practice: if a species is not native to your state, permit applications for that combination tend to get denied.

Hawaii and California: Extra Strict for Good Reason

Two states stand out for having biosecurity rules that go well beyond the federal baseline: Hawaii and California.

Hawaii has some of the tightest agricultural biosecurity laws in the country, and for understandable reasons. As an island ecosystem with no land borders, any invasive species that gets established there has essentially nowhere to go but further in. Hawaii is already dealing with the little fire ant (Wasmannia auropunctata) on multiple islands, with thousands of survey samples processed each year to track its spread. The state's Department of Agriculture actively screens incoming shipments, and live insects are treated with extreme caution. In practice, no commercial ant vendor ships live ants to Hawaii, and personal importation of live ants from the mainland is off the table. Traveling to Hawaii with live ants in your carry-on bag would result in confiscation at minimum.

California has its own layer of state-level permitting through the California Department of Food and Agriculture. California Food and Agricultural Code Section 6305 requires a permit to import or ship live insects into or within the state unless they fall into a narrow exemption for common native beneficial insects. California also has strict rules about non-native species under the California Department of Fish and Wildlife, and the combination of state and federal requirements means that vendors typically hold separate USDA and California-specific permits when shipping to California customers. The list of species a vendor can legally send to California is usually shorter than for most other states.

Alaska and Florida also have restrictions worth noting. Alaska prohibits most live insect imports due to its sensitive ecosystems. Florida, as a heavily quarantined state for fire ants and other invasives, has strict incoming shipment controls that vendors must navigate carefully.

Buying Ants Online: What Actually Happens

When you order live ants from a US vendor, the transaction works roughly like this. The vendor holds a USDA PPQ 526 permit that lists the species they are authorized to ship and the states they can ship to. When you complete your purchase, the vendor includes a copy of the relevant permit in your shipment along with APHIS disposal instructions. You agree as the buyer not to resell or give the ants to someone else, and to follow the disposal instructions when you are done keeping them.

The proper disposal method, according to APHIS guidelines, is to euthanize the colony by placing it in a freezer for at least 24 hours. This applies whether you caught your ants locally or received them by mail. Never release ants into the environment. Even native species moved from one region to another can carry pathogens or introduce genetic diversity that disrupts local populations.

If you try to order a species that a vendor does not have a permit for in your state, a well-run online store will block the transaction at checkout. If it goes through anyway, ask the vendor to confirm their permit status before the package ships. You can also verify a vendor's permit directly by emailing APHIS at Pest.Permits@usda.gov.

Native vs. Non-Native Species: Why It Matters Legally

The native versus non-native distinction is central to how USDA evaluates permit applications. In simple terms, shipping a species to a state where it already naturally occurs is much more likely to get approved than shipping one that does not live there in the wild.

This is good news for most hobbyists. The ants most commonly kept in the US hobby are species like Camponotus pennsylvanicus (eastern black carpenter ant), Pogonomyrmex barbatus (red harvester ant), Tetramorium caespitum (pavement ant), and Formica species. These ants have wide natural ranges across the continental US, which makes permitting for them more straightforward in the states where they are native. See our full care guides for Camponotus pennsylvanicus, Pogonomyrmex barbatus, and Formica subsericea for more on keeping these species.

Non-native species are a different matter. Bringing in ants from other countries, or moving a species to a state far outside its natural range, will face much more scrutiny, and in many cases a permit simply will not be issued. The hobby has generally moved in the direction of native species for this reason, and that is a good thing from a biosecurity standpoint.

There is also an exception worth knowing: Pogonomyrmex occidentalis (western harvester ant) can reportedly be shipped to most of the lower 48 states without a PPQ 526 permit, though vendors still exclude Alaska, California, Florida, and Hawaii. Always confirm the current rules with APHIS since regulations can be updated.

Practical Tips for Staying Compliant

Here is what staying on the right side of ant keeping law looks like in practice:

• Catch locally when you can. Collecting queen ants during nuptial flights from your own backyard or nearby areas requires no permit and is the most legally straightforward way to start a colony. Use AntFlights.com to track flight activity in your area and AntMaps.org to identify what species live near you.
• Buy from permitted vendors. Stick to US-based vendors who clearly list the states they are permitted to ship to for each species. A reputable vendor's product page will tell you whether they can ship to your state before you even add something to the cart.
• Verify before importing internationally. If you are considering buying from a foreign vendor, contact APHIS before you order. The seller may not know or care about US regulations, but you will be the one held responsible.
• Do not move ants between states yourself. Driving ants from one state to another in your car is still interstate movement and falls under the same rules. If you are relocating and want to bring your colony, the safest step is to check with APHIS.
• Follow disposal instructions. Freezer for 24 hours. It is simple and it matters.
• Keep Hawaii, California, Alaska, and Florida in mind. These states have extra layers of restriction. If you live in one of them or plan to move there, confirm what is allowed before you buy.

Where to Get Answers

The USDA APHIS page on Invertebrate Pets is the best starting point for official guidance. For permit questions, contact APHIS directly:

• Email: Pest.Permits@usda.gov
• Phone: (301) 851-2285 or toll-free (866) 524-5421

Ant keeping is a great hobby and the rules, while real, are not designed to make life difficult for people who genuinely care about doing things right. Understanding the framework helps you keep legally, make smarter choices about where you source your ants, and be a better ambassador for the hobby overall.

Sources

USDA APHIS. Invertebrate Pets. Animal and Plant Health Inspection Service.

Electronic Code of Federal Regulations. 7 CFR Part 301, Subpart P: Imported Fire Ant.

Electronic Code of Federal Regulations. 7 CFR Part 330: Federal Plant Pest Regulations.

AntGear. Permits: Shipping Queen Ants to Other States. AntGear LLC.

Hawaii Invasive Species Council. 2026 Legislative Session. Hawaii DLNR.