Roof Rat Laws › United States › New Jersey
Summary. New Jersey is strict about exotic pets in general, but it expressly exempts the entire rat genus: its exempt-pet list (N.J.A.C. 7:25-4.4) names ‘Mice and Rats, Mus spp. and Rattus spp.’ Because the exemption is written at the GENUS level, it covers Rattus rattus exactly as it covers the common fancy rat. So keeping and breeding a captive-bred roof rat is legal with no exotic/nongame permit (just cage it to prevent escape and never release it). Private rehoming/adoption is fine; COMMERCIAL selling triggers Fish & Wildlife pet-shop/dealer licensing. No pet-rat-specific state import certificate was found (the CVI rules cover livestock/poultry).
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.Status by activity
Keeping / owning Legal
Confidence: High · Last verified 2026-06-07
N.J.A.C. 7:25-4.4(a) lists species that ‘may be possessed in this State without a permit,’ and subsection (a)2.v lists ‘Mice and Rats, Mus spp. and Rattus spp.’ Because the exemption names the entire genus Rattus, captive-bred Rattus rattus falls within it and needs no exotic/nongame possession permit. The only condition (4.4(b)) is that the animal be caged to prevent escape. Rattus is absent from the permit-required list (7:25-4.3) and the potentially-dangerous-species list (7:25-4.8). Gemini DR-verified: N.J.A.C. 7:25-4.4 exempts the entire genus Rattus from exotic-wildlife permitting (the model genus-level exemption).
Sources: NJ Division of Fish & Wildlife (via Cornell LII), NJ Division of Fish & Wildlife (via Cornell LII), NJ Division of Fish & Wildlife (via Cornell LII)
Breeding Legal
Confidence: Medium · Last verified 2026-06-07
An exempt species under 7:25-4.4 is removed from the possession-permit scheme, and no NJ Fish & Wildlife rule imposes a hobby-breeding permit for an exempt pet rodent. Breeding is simply continued possession of exempt animals, so long as the no-escape housing rule (4.4(b)) is met and animals are never released (N.J.S.A. 23:4-63.3). Commercial-scale breeding for sale shifts into dealer/pet-shop licensing. Gemini DR-verified: no statewide hobby-breeder license for exempt rodents.
Sources: NJ Division of Fish & Wildlife (via Cornell LII), NJ Revised Statutes (Justia)
Selling or giving away Legal
Confidence: Medium · Last verified 2026-06-07
Because Rattus spp. is exempt, transferring or giving an individual pet rat is not barred by the possession code. But anyone SELLING exotic/nongame wildlife commercially must hold the applicable NJ Fish & Wildlife permit, a Pet Shop–Retail Sales permit or an Animal Dealer–Wholesale permit ($100 each). Free adoption/rehoming via private transfer is the cleanest route and avoids the dealer question. Gemini DR-verified: private giving is unregulated; commercial sale needs a MUNICIPAL pet-shop license (local health dept), not a state exotic-dealer permit.
Sources: NJ Division of Fish & Wildlife, NJ Division of Fish & Wildlife (via Cornell LII)
Transport & import Legal
Confidence: Medium · Last verified 2026-06-07
Intrastate transport of a lawfully-possessed exempt pet is not restricted. New Jersey’s animal-import / CVI scheme (N.J.A.C. 2:3) is limited to livestock and poultry and does not impose a CVI on pet rodents. The binding statewide rules are the no-release prohibition (N.J.S.A. 23:4-63.3) and the no-escape caging rule (7:25-4.4(b)). Confirm import expectations with the State Veterinarian, as no rat-specific rule was located. Gemini DR-verified: intrastate unregulated; import of companion rodents isn’t subject to a state CVI (livestock/poultry/dogs-focused) – a practical-legal gray area; commercial carriers may still require a CVI.
Sources: NJ Division of Fish & Wildlife (via Cornell LII), NJ Revised Statutes (Justia)
Restrictions & responsibilities
- For commercial sales: obtain the appropriate NJ Fish & Wildlife pet-shop/dealer permit
- Private rehoming/adoption needs no permit
Forms: NJ Fish & Wildlife, Exotic & Nongame Wildlife Permit Applications · Where: NJ Division of Fish & Wildlife, Wildlife Permits Unit · Fees: $100 per permit
Source: NJ Division of Fish & Wildlife
Source: NJ Revised Statutes (Justia), NJ Division of Fish & Wildlife (via Cornell LII)
Official sources
- N.J.A.C. 7:25-4.4, Exempted species (‘Mice and Rats, Mus spp. and Rattus spp.’), NJ Division of Fish & Wildlife (via Cornell LII)
- N.J.A.C. 7:25-4.3, Exotic/nongame species requiring a permit (Rattus NOT listed), NJ Division of Fish & Wildlife (via Cornell LII)
- N.J.A.C. 7:25-4.8, Potentially dangerous species (rodents = prairie dogs & ground squirrels only), NJ Division of Fish & Wildlife (via Cornell LII)
- N.J.S.A. 23:4-63.3, Possession/release of certain animals (no-release rule), NJ Revised Statutes (Justia)
- NJ Fish & Wildlife, Exotic & Nongame Wildlife Permit Applications (pet-shop/dealer permits), NJ Division of Fish & Wildlife
Search terms: Rattus rattus, roof rat, black rat, ship rat.
Last reviewed 2026-06-07, 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.