Are Roof Rats Legal in Iowa? Keeping, Breeding & Selling

8 min read · Updated August 2026

Roof Rat LawsUnited States › Iowa

Summary. Iowa is one of the cleaner states for the roof rat, with no species-trap. The Dangerous Wild Animals law (Iowa Code ch. 717F) is a closed list, big cats, bears, wolves, primates, rhinos, elephants, crocodilians, venomous snakes, and feral swine, that contains NO rodents; and DNR jurisdiction (ch. 481A) reaches native ‘wild animals found in this state,’ game, and fur-bearers, not a captive-bred indoor pet rodent. Iowa’s statutes use broad terms (‘rodent,’ ‘vertebrate animal,’ ‘nonhuman vertebrate’) and never split the genus Rattus by species, so a domesticated roof rat is treated exactly like a fancy rat (R. norvegicus). Keeping and breeding are legal and unregulated for a private owner (the IDALS ‘commercial breeder’ license applies only to dogs and cats). Selling/giving is legal: a producer who sells rats born and reared on their own premises is fully exempt from the IDALS ‘pet shop’ license regardless of volume, and a small reseller/broker is exempt below $1,000 in sales OR 12 animals per year. Importing a rat into Iowa does require a Certificate of Veterinary Inspection (IAC 21-65.3) within 30 days of entry; intrastate movement is unregulated. Iowa’s prohibited-import rodent list (the 2003 monkeypox seven, prairie dogs, Gambian rats, dormice, etc.) does NOT include Rattus. Releasing one into the wild is illegal (wildlife-introduction + animal-abandonment laws), and a kept rat is protected by the state animal-neglect statute.

Not confirmed by the regulator. This page is based on our own desk research; the sources we used are listed below. Last reviewed 2026-06-13.
legal note This is a research aid, not legal advice; rules change and are interpreted by local officials. Verify with the official source before acting.
National law also applies. These are the Iowa-specific rules; United States’s national rules (for example, breeder/dealer licensing and import/export) apply on top of them. See United States.

Status by activity

Keeping / owning   Legal

Confidence: High · Last verified 2026-06-13

Iowa Code §717F.1(5) defines ‘dangerous wild animal’ as a closed, exhaustive list of enumerated families/orders, Canidae, Hyaenidae, Felidae, Ursidae (incl. pandas), Rhinocerotidae, Proboscidea (elephants), non-human Primates, Crocodilia, specific Squamata (monitors, venomous snakes/lizards, certain large constrictors), and feral swine, and the order Rodentia is entirely absent, so by expressio unius a roof rat is not a regulated dangerous animal (no permit, insurance, or registration). DNR authority under Iowa Code ch. 481A reaches a ‘wild animal’ defined as wildlife ‘found in this state’ to which the state claims title (§481A.1(36)), plus game and fur-bearers (§481A.1(20)), none of which covers a non-native, captive-bred indoor pet rodent. No state possession permit applies. (A kept rat is still protected from neglect under Iowa Code §717B, and wild-caught/released rats are a separate matter.)

Sources: Iowa Legislature, Iowa Legislature / Iowa DNR, Iowa Legislature

Breeding   Legal

Confidence: High · Last verified 2026-06-13

Breeding roof rats is unregulated at the state level. The IDALS ‘commercial breeder’ license is defined (Iowa Code §162.2(8)) as applying only to a person ‘engaged in the business of breeding dogs or cats,’ so a rodent breeding operation, regardless of scale, revenue, or volume, cannot be classified as a commercial breeder. The DNR ‘game breeder’ license (Iowa Code §481A.60/§481A.61) covers only game birds, game animals, and fur-bearers, which exclude rats. And ch. 717F (dangerous animals) does not reach rodents. So there is no breeder license, facility cap, or breeding-volume limit for a roof-rat breeder. (A breeder who then resells rats NOT born on their premises can trigger the separate ‘pet shop’ license above a sales threshold, see sell_give.)

Sources: Iowa Legislature, Iowa Legislature / Iowa DNR, Iowa Legislature

Selling or giving away   Legal

Confidence: High · Last verified 2026-06-13

Selling or giving away captive-bred roof rats is legal. The only commercial touchpoint is the IDALS ‘pet shop’ license (Iowa Code §162.2(19)), defined as a facility where vertebrate animals ‘not born and reared on the facility’s premises’ are sold at retail. Two large exemptions cover the typical keeper/breeder: (1) the ‘born and reared on premises’ exemption, a producer selling or giving away rats they bred themselves needs NO license, regardless of volume; and (2) a small-broker threshold, even someone reselling rats not born on their premises is exempt if they take in less than $1,000 OR transfer fewer than 12 vertebrate animals in a 12-month period. So a hobby breeder, a rescue, or a free-adoption program operates with no license. A pet-shop license (annual fee $175 via the IDALS Animal Welfare Bureau) is required only for a broker/retailer who exceeds the threshold, and that triggers IAC 21-67 welfare/caging standards and inspections.

Sources: Iowa Legislature, Iowa Legislature, Iowa Dept of Agriculture & Land Stewardship

Transport & import   Legal with a permit

Confidence: High · Last verified 2026-06-13

Intrastate transport (moving a roof rat within Iowa) is entirely unregulated. IMPORTING a rat into Iowa requires a Certificate of Veterinary Inspection: IAC 21-65.3(3) provides that ‘Animals imported into the state must be accompanied by a Certificate of Veterinary Inspection, unless specifically exempted by this chapter,’ and the chapter’s exemptions cover certain livestock/poultry movements but NOT pocket pets or domesticated rodents, so a CVI is required. It must be issued by a licensed, USDA-accredited veterinarian in the origin state on an official state-of-origin form (or USDA equivalent), be no more than 30 days old at entry, and certify the animal free of infectious/communicable disease. Critically, Iowa’s prohibited-import rodent embargo (IAC 21-65.3(1)(b), the 2003 monkeypox seven: prairie dogs, tree/rope squirrels, dormice, Gambian giant pouched rats, brush-tailed porcupines, striped mice) does NOT include the genus Rattus, so roof rats may lawfully be imported with a CVI. (Vesicular-stomatitis certification under 65.3(4) is hoofed-animals-only and does not apply.) Never release a roof rat, outdoor introduction is separately illegal.

Sources: Iowa Dept of Agriculture & Land Stewardship, Iowa Legislature / Iowa DNR, Iowa Legislature

Restrictions & responsibilities

An IDALS ‘pet shop’ license is required ONLY for a broker/retailer who sells vertebrate animals NOT born and reared on their own premises AND exceeds the threshold ($1,000 in sales OR 12 vertebrate animals in 12 months, per Iowa Code §162.2(19) as amended by HF 666; the older IAC 21-67.1 still recites $500/6). A producer selling rats they bred themselves is exempt regardless of volume, and low-volume resellers and free-adoption programs are exempt. A licensed facility must meet IAC 21-67 animal-welfare/caging standards and pass inspections.
  • If you bred the rats yourself (‘born and reared on premises’), no pet-shop license is required at any volume
  • If you resell rats not born on your premises, stay under the threshold (less than $1,000 in sales OR fewer than 12 vertebrate animals per 12 months) to remain exempt
  • If over the threshold as a broker/retailer: apply for the IDALS pet-shop license ($175/yr) and meet IAC 21-67 welfare/caging standards and inspections

Forms: Application to Operate in Iowa as a Licensed Animal Welfare Facility (IDALS Animal Welfare Bureau) · Where: Iowa Dept of Agriculture & Land Stewardship, Animal Welfare Bureau / Animal Industry Division (Hoover State Office Bldg, 1305 E. Walnut St, Des Moines, IA 50319) · Fees: $175/yr (pet-shop license) only if not exempt; $0 for exempt producers and low-volume/free transfers

Source: Iowa Legislature, Iowa Legislature, Iowa Dept of Agriculture & Land Stewardship, Iowa Dept of Agriculture & Land Stewardship

Importing a pet rat into Iowa from another state requires a Certificate of Veterinary Inspection (IAC 21-65.3(3)) issued by a USDA-accredited veterinarian in the origin state, on an official origin-state form (or USDA equivalent), valid no more than 30 days before entry, certifying the animal free of infectious/communicable disease. The genus Rattus is NOT on Iowa’s prohibited-import rodent list (IAC 21-65.3(1)(b)), so roof rats may be imported with a CVI. No CVI is needed for moving a rat within Iowa. Missing CVI can draw a civil penalty.
  • Before bringing the rat into Iowa, have a USDA-accredited origin-state veterinarian issue an official-state CVI within 30 days of entry
  • Carry the CVI with the animal to its final destination in Iowa (a copy goes to the origin state’s livestock health official)
  • No CVI is required for moving the rat within Iowa

Where: IDALS Animal Industry Bureau / State Veterinarian (origin-state veterinarian issues the CVI) · Fees: Origin-state veterinary fee for the CVI; no Iowa import-permit fee

Source: Iowa Dept of Agriculture & Land Stewardship

Releasing a roof rat into the wild is illegal in Iowa: introducing any animal into the state’s environment requires a DNR permit that will not be granted for a non-native nuisance species (Iowa Code §481A.47), and abandoning a pet is a crime (Iowa Code §717B.8). A kept roof rat is also protected from neglect (Iowa Code §717B.3, adequate food, water, and sanitary housing). Keep them contained and rehome responsibly; never release. Local city/county ordinances may add limits.

Where: Iowa DNR (wild release) / local code enforcement (ordinances)

Source: Iowa Legislature / Iowa DNR, Iowa Legislature

Thinking about keeping or breeding roof rats? Start with the care & husbandry guide, try the interactive games, or get in touch about joining as a colony keeper.

Official sources

Search terms: Rattus rattus, roof rat, black rat, ship rat.

About this page
Last reviewed 2026-06-13, which is when a person last read this page against its sources. Spotted an error, or know the law has changed? Email blonderoofrat@gmail.com. And if you write to the agency yourself and get an answer in writing, please forward it. Written agency replies are how 31 of these pages stopped being research and became confirmed.