Moving Cattle Across State Lines to Louisiana: Health Papers, Tags, and Permits You’ll Need

Moving cattle across state lines to Louisiana takes more than a trailer, a hitch, and a full tank of gas. Between federal ID rules, state disease testing, and paperwork that has to reach the Louisiana Department of Agriculture and Forestry within days of being written, one missing form can leave your load sitting at a scale house while you make phone calls. This breakdown walks through exactly what you need before you ever cross the state line, section by section, so you’re not guessing at a weigh station.

You’ll find the rules differ depending on whether you’re hauling feeder calves, breeding bulls, or lactating dairy cows, and Louisiana has tightened several of its dairy-specific rules in recent years. Read through each section below and confirm the current version of every requirement with Louisiana Animal Health before you load out.

Cattle Class and Purpose of the Move Into Louisiana

Louisiana treats cattle differently depending on class and reason for the move, and that starting point shapes every other section of this guide. Industry veterinarians who coordinate interstate shipments note that regulations can vary between bulls shipped for breeding and heifers moved for grazing, and each load may require different health treatments and testing depending on the destination. Federal rules set the floor, but every state can add stricter requirements on top of what USDA sets as the minimum, according to the Texas Animal Health Commission.

Breeding stock, including beef cattle (Bos taurus), typically faces the heaviest paperwork load because of reproductive disease testing. Feeder calves headed to grow yards, cull cows going to a sale barn, and cattle running straight to a packing plant each qualify for lighter documentation, covered later in the direct-to-slaughter section. If you’re unsure which category your animals fall into, reviewing the different cattle breeds commonly shipped for breeding versus feeding purposes can help you sort out which rules actually apply to your load.

Purpose matters just as much as class. A bull moving to a new ranch for breeding season, a dairy cow headed to a Louisiana dairy, and a load of steers destined for auction all trigger different combinations of the requirements covered in the sections below.

Official Identification and RFID Tags for Interstate Cattle

A federal rule that took effect on November 5, 2024, changed which type of tag counts as official identification. Under that rule, visually and electronically readable 840 EID tags became the only accepted form of official identification for sexually intact cattle and bison 18 months of age and older, all rodeo and exhibition cattle, and dairy cattle moving interstate. The Louisiana Department of Agriculture and Forestry confirms this applies to any qualifying animal crossing into the state.

Importantly, the rule only changed the type of tag allowed, not which classes of cattle need to be tagged in the first place. Feeder cattle and animals moving directly to slaughter are handled differently: feeder cattle and cattle or bison that move directly to slaughter do not require individual official identification and may travel on backtags instead, per USDA’s Animal and Plant Health Inspection Service.

Getting tagged requires a small amount of advance planning. Producers need a premises ID number to purchase 840 tags directly from a distributor, while accredited veterinarians can receive EID tags at no cost through LDAF’s Department of Veterinary Health.

Pro Tip: Apply for your premises ID number before you need tags, not the week you’re loading out. Distributors and accredited vets both need that number on file, and last-minute requests can stall a shipment by days.

Disease Tests and Vaccinations Louisiana May Require

Louisiana’s disease status affects which tests you’ll actually need. The state reached an important milestone years ago: USDA-APHIS declared Louisiana free of brucellosis, making it the 45th state to rid itself of the disease, and that Class Free status removed certain restrictions on the interstate movement of cattle.

That status doesn’t eliminate testing for every animal, though. Under Louisiana’s administrative code, cattle 12 months of age or older sold or purchased through a livestock dealer must test negative for brucellosis within 30 days prior to sale, with several standard exceptions: steers and spayed heifers, calfhood-vaccinated heifers under a certain age moving directly from a known-clean herd, bulls under 18 months, and animals consigned to slaughter with an official backtag are all exempt from that pre-sale test.

Trichomoniasis draws separate attention because of how it moves through a herd. Louisiana classifies it as a reportable venereal disease, and it causes early fetal death and infertility, which extends calving intervals across an infected herd. In herds with tight breeding windows, the calf crop can drop by as much as 50 percent, according to LDAF’s animal disease program. Because of that risk, non-virgin bulls and bulls older than 18 months entering Louisiana commerce must carry a current negative trichomoniasis test, while virgin bulls instead need a signed breeder’s certification of virgin status.

Disease	Who Must Test	Typical Timing	Common Exemption
Brucellosis	Cattle 12 months and older sold through a dealer	Negative test within 30 days of sale	Steers, spayed heifers, young vaccinated heifers, slaughter-bound cattle
Trichomoniasis	Non-virgin bulls and bulls over 18 months	Current negative test before sale or entry	Virgin bulls with signed certification

Extra Rules for Dairy Cattle, Including HPAI / H5N1 Testing

Dairy cattle face the strictest entry rules in Louisiana right now, largely because of avian influenza concerns. Under a revised order from the State Veterinarian effective August 9, 2024, all lactating dairy cattle must test negative for Highly Pathogenic Avian Influenza within seven days before admission to fairs, livestock shows, exhibitions, or breeders’ association sales, with milk samples collected by a USDA-accredited veterinarian and tested at a National Animal Health Laboratory Network lab.

Shipping paperwork gets tighter too. A Certificate of Veterinary Inspection used to ship dairy cattle from any state that has had an HPAI detection in dairy cattle within the past 30 days is valid for no more than seven days, rather than the standard 30-day window that applies to most other livestock.

LDAF has since scaled back part of that order. The State Veterinarian rescinded the requirement to test lactating dairy cattle for HPAI before fairs, shows, exhibitions, and breeders’ association sales effective September 15, 2025, but every other HPAI order remains in effect, including the restriction on interstate movement of HPAI-positive dairy cattle into Louisiana.

Important Note: HPAI orders have changed twice in roughly a year. Before you load a lactating dairy cow bound for Louisiana, call LDAF’s Animal Health Services directly to confirm which testing and CVI-validity rules apply on the day you ship, not the day you last checked.

Certificate of Veterinary Inspection (CVI / ICVI)

Almost every animal entering Louisiana needs a Certificate of Veterinary Inspection issued by an accredited veterinarian. That certificate has to state the animals are free from signs of infectious or contagious disease, free from internal and external parasites, and meet any specific requirements stated in the regulation, and the certificate stays valid for 30 days, per LDAF’s transporting-livestock guidance. Reviewing Louisiana’s livestock transport laws before you finalize your CVI can catch gaps early.

One rule has no exceptions: no livestock affected with, or carrying the contagion of, screwworms may be moved into Louisiana for any purpose.

Paper CVIs are becoming less common nationally. Texas now requires that, as of January 1, 2026, all import certificates of veterinary inspection must be electronic, and digital CVI platforms already let accredited vets create and transmit these documents without a paper original. Shippers moving cattle regionally should expect Louisiana and its neighbors to keep pushing toward electronic CVIs as the standard rather than the exception.

Entry Permits From Louisiana Animal Health

Louisiana doesn’t run a blanket prior-approval permit system the way some states do for every interstate cattle shipment. Instead, the CVI itself functions as the primary entry document, and LDAF asks that a completed health certificate be sent to its office within seven days of issue, after which LDAF forwards a copy to the state of destination.

Specific circumstances still create a permit-style requirement. If a bull enters Louisiana commerce without a trichomoniasis test on record, it must be tested and placed in an LDAF-inspected holding pen within 30 days of purchase, or resold to slaughter through a USDA-approved livestock market. Producers who need that holding pen can apply through LDAF’s livestock programs and permitting office.

Neighboring states show how quickly permit rules can shift. During a 2022 emergency evacuation, a representative for Louisiana or the herd owner could call the Texas Animal Health Commission’s permits line and request an entry permit number for each shipment, with that permit valid for 10 days, according to Farm Progress reporting on the arrangement. It’s a reminder that whatever permit process exists today may not look the same next season, so confirming directly with the destination state’s animal health office before loading out is worth the phone call every single time.

Brand Inspection and Proof of Ownership

Louisiana isn’t a mandatory brand-inspection state in the way Wyoming or Texas run highway check stations for every load. Ownership can typically be established with a bill of sale or registration papers, similar to how proof of ownership is accepted from states that don’t run a formal brand-inspection system, as Utah’s animal health program describes for cattle arriving from non-inspecting states.

Brand law in Louisiana does become mandatory in one specific scenario: a brucellosis-positive animal. State statute requires that any cattle found affected with brucellosis be presented and restrained for identification and branding by an authorized agent of Louisiana’s animal health authority. The administrative code spells out exactly how: reactor animals must be branded with a 3-inch hot brand reading “B” on the left jaw and fitted with a reactor tag in the left ear, with both applied immediately after a positive result is confirmed. If you want the full picture of how the state’s brand laws work outside of disease scenarios, that’s worth a separate read before you ship.

Recording a voluntary brand with LDAF ahead of time still pays off. It gives you a documented ownership record if a dispute comes up after the animals arrive, even though Louisiana doesn’t inspect every load at the border for it.

Direct-to-Slaughter, Market, and Other Limited Pathways

Not every shipment needs the full CVI-plus-ID package. Louisiana exempts certain loads outright: livestock consigned to an approved slaughter establishment or livestock auction market are exempt from the health-certificate requirement altogether, according to LDAF’s transporting-livestock regulation.

Identification rules loosen for the same category of animals. As noted earlier, cattle and bison moving directly to slaughter can travel on a backtag instead of individual official identification. That shortcut is pathway-specific, though: diverting a “slaughter-only” load to a sale barn or a new owner’s pasture voids the exemption and puts the shipment back under full CVI and ID requirements.

• Direct-to-slaughter: No CVI required if consigned to an approved slaughter plant; backtag accepted in place of individual ID.
• Auction/sale barn: Exempt from the health-certificate requirement when consigned to an approved market.
• Exhibition or rodeo cattle: No exemption — full EID tagging and CVI apply regardless of how short the trip is.

Papers That Must Travel With the Load

Keep every document in the cab, not filed away at the office. At minimum, plan on carrying a Certificate of Veterinary Inspection for interstate moves, proof of ownership such as registration papers, a bill of sale, or a brand certificate, and any import permit required by the destination state, according to livestock transport guidance published by Creatures. Keep all of that documentation in the truck during transport, since roadside inspections can occur and failure to produce required paperwork can result in animals being held at the state line.

For a Louisiana-bound load specifically, that folder should include your CVI, EID tag records if the animals qualify, any brand or ownership paperwork, and a copy of the LDAF holding-pen or trichomoniasis permit if one applied. Cross-checking your paperwork against Louisiana’s own transport regulations before you leave the origin state catches most gaps early.

Pre-Load Checklist Before You Cross Into Louisiana

Run through this sequence before the trailer leaves the driveway:

1. Confirm the class and purpose of the animals you’re shipping, since that determines everything else on this list.
2. Verify EID tags are applied for any sexually intact cattle 18 months or older, dairy cattle, or exhibition animals.
3. Schedule the accredited-vet exam early enough to get a CVI issued within the required window.
4. Run brucellosis and trichomoniasis tests with enough lead time to have results back before loading.
5. Check current HPAI testing and CVI-validity rules if you’re shipping lactating dairy cattle.
6. Call Louisiana Animal Health Services to confirm whether your specific load needs a permit.
7. Gather ownership documents, and record any voluntary brand with LDAF beforehand.
8. Plan your route and timing around the federal 28-Hour Law, which requires animals transported by truck across state lines to be unloaded for at least five hours of rest, water, and feeding after 28 consecutive hours of transport.
9. Place every document in the cab, not the office file cabinet.

Once cattle are actually on Louisiana ground, ownership and containment questions don’t end with the paperwork. Reviewing the state’s cattle trespass laws is worth doing before you unload, especially if the animals are heading to leased or unfamiliar pasture.

Where to Confirm Current Louisiana Cattle Import Rules

State orders — especially the HPAI directives covered earlier — have changed twice in about a year, so treat every rule in this guide as a starting point rather than a final answer. Contact LDAF’s Animal Health Services and Food Safety division directly, and check the interstate-livestock portal that LDAF’s own transporting-livestock page points shippers toward for the current CVI and permit status.

If you regularly haul cattle across several states, it helps to compare processes side by side rather than assume Louisiana’s rules carry over elsewhere. The steps look different when you’re moving cattle into Wyoming or shipping cattle into Wisconsin, since brand-inspection and ID rules diverge sharply from one state line to the next. As Texas Animal Health Commission staff put it plainly to producers moving stock interstate, haulers should always call the state of destination to confirm they meet all entry requirements — a habit that applies just as much to Louisiana as it does anywhere else.