Moving Cattle Across State Lines to Maryland: CVI, Permits, and Health Testing Rules

Moving cattle across state lines to Maryland involves more than hooking up a trailer and hitting the highway. Every animal needs a signed health certificate, most classes face brucellosis and tuberculosis compliance checks, and lactating dairy cows may still need a negative avian influenza test depending on where the load originated. Skip one form and the truck can be turned back at the scale house or held for inspection.

This guide walks through what Maryland’s Department of Agriculture (MDA) and federal rules actually require, from identification and disease testing to the paperwork that has to ride in the cab with the driver. Rules shift as disease status changes across the country, so treat this as your starting checklist, then confirm details with MDA before the truck leaves the yard.

Important Note: Interstate cattle movement rules change as disease status shifts state by state. Confirm current requirements with Maryland’s Animal Health Program before you finalize transport plans.

Cattle Class and Purpose of the Move Into Maryland

Maryland’s import rules don’t treat all cattle the same way. A load of feeder steers headed to pasture faces a different paperwork trail than registered dairy cows going into a milking herd, breeding bulls joining a beef operation, or slaughter cattle consigned straight to a packing plant. The class and purpose of the move determines which tests, if any, apply and whether a full Certificate of Veterinary Inspection is even required.

Cattle for dairy and breeding purposes, feeder cows, heifers and bulls or beef breeds, including calves and cattle for exhibition purposes, may be imported into Maryland provided they meet specific brucellosis testing requirements. Slaughter-bound cattle get the lightest treatment: apparently healthy cattle of strictly slaughter type may be imported without a health certificate or disease test, provided they travel on a waybill consigned for immediate slaughter to an approved stockyard or slaughtering establishment. Knowing which bucket your animals fall into before loading saves a lot of confusion at the border.

If you’re sourcing breeding stock, it helps to know which cattle breeds carry different disease-testing histories and vaccination protocols, since some breed associations require additional herd documentation beyond what Maryland asks for. Producers who also ship to other states will notice the paperwork isn’t identical everywhere; the process for moving cattle into Wisconsin follows its own set of dairy-specific rules, and neither state’s requirements substitute for the other’s.

Official Identification and RFID Tags for Interstate Cattle

Every animal on the load needs individual, official identification before it crosses into Maryland. This typically means a USDA-approved ear tag, and for many classes of cattle that now means an official RFID (radio-frequency) tag rather than a metal clip tag alone. Identification numbers must match what’s recorded on the Certificate of Veterinary Inspection, or the paperwork won’t hold up to inspection.

Rodeo and exhibition cattle face an even tighter standard. Rodeo cattle must have official individual identification recognized by the USDA under 9 CFR Parts 71, 77, 78, and 86, and they are not allowed to commingle with other cattle at the event. That segregation rule exists specifically to limit disease spread between show strings and general livestock.

Pro Tip: Order official RFID tags through an accredited veterinarian or your state’s animal health office well before shipping day. Untagged animals can be denied entry or held at the point of arrival.

Disease Tests and Vaccinations Maryland May Require

Maryland’s testing requirements hinge on the brucellosis and tuberculosis status of the state and herd of origin, not just the animal itself. Cattle coming from an Accredited Tuberculosis-Free state, region, or zone need no tuberculin test, but cattle from a Modified Accredited Advanced or lower area must either originate from a herd tested within the past 12 months or show a negative tuberculin test within 60 days before import.

Brucellosis works on a similar sliding scale. Cattle from herds not certified brucellosis-free need no test if they come from herds tested within 12 months, or from herds with two negative milk ring tests and no intervening positive results within that window. Animals that don’t meet those conditions generally need an official brucellosis test shortly before entry, with exceptions for young calves and calfhood vaccinates. The full framework sits inside COMAR 15.11.01.04, which spells out the qualified-herd criteria cattle owners and veterinarians need to check against.

Vaccination requirements show up mostly around exhibition and fair cattle rather than routine farm-to-farm moves. Out-of-state cattle entering fairs and shows are commonly required to carry vaccination coverage for Bovine Respiratory Syncytial Virus, Bovine Viral Diarrhea Virus, Infectious Bovine Rhinotracheitis, and Parainfluenza, along with an official ear tag, and leptospirosis vaccination is also recommended for those animals. Maryland’s own brucellosis status matters here too, since Maryland is a Brucellosis Class-Free State, and brucellosis testing is not required for Maryland-origin goats moving within these programs — a helpful reminder that testing burdens usually fall on the origin state’s status, not Maryland’s. For a deeper look at how brucellosis testing intersects with state law, the brucellosis laws in Maryland breakdown covers qualified-herd definitions in more detail. Rules governing companion-animal vaccination in the state, covered in Maryland’s pet vaccination laws, follow a separate legal track from livestock testing, but both fall under the same COMAR framework and Maryland’s broader animal health enforcement authority.

Test	When Required for Maryland Entry	Common Exception
Brucellosis	Herds not certified free, without recent negative tests	Official calfhood vaccinates under 24 months, calves under 6 months
Tuberculosis	Cattle from non-TB-free states/zones, over 6 months	Herd tested clean within 12 months
HPAI (H5N1)	Lactating dairy cattle from affected/monitored states	Cattle from NMTS Stage 4 Unaffected states, direct-to-slaughter cattle

Extra Rules for Dairy Cattle, Including HPAI / H5N1 Testing

Dairy cattle carry an extra federal layer that beef and feeder cattle don’t. Avian influenza virus type A (H5N1) was first confirmed in U.S. dairy cattle in March 2024, and a federal order has been in effect since April 29, 2024, requiring testing of lactating dairy cattle for H5N1 prior to interstate movement and reporting of positive results to APHIS.

That baseline requirement has loosened for some states as surveillance data improved. APHIS no longer requires HPAI testing for lactating dairy cattle moving interstate from states with Unaffected State Status under the National Milk Testing Strategy, a status maintained through ongoing surveillance. Maryland’s own Animal Health Program flagged this change directly: as of the updated guidance, lactating dairy cattle moving interstate from states with NMTS Stage 4 Unaffected Status are no longer required to test for HPAI H5N1 prior to movement.

That doesn’t mean every dairy load skips testing. Whether a pre-movement test is still required depends entirely on the origin herd’s NMTS status, which changes as surveillance data comes in. If you’re unsure whether your lactating dairy cattle require HPAI testing before entering Maryland, MDA recommends calling the Animal Health Program at 410-841-5810 to confirm your specific situation. The American Veterinary Medical Association maintains an updated breakdown of which states carry active HPAI detections, which is worth checking alongside your origin state’s NMTS classification. For the most current federal guidance, APHIS’s program update page tracks changes to the testing order as they roll out.

Key Insight: Nonlactating dairy cattle — heifers, dry cows, and bull calves — generally fall outside the HPAI premovement testing order, since the risk profile differs from actively milking cows.

Certificate of Veterinary Inspection (CVI / ICVI)

The CVI is the backbone document for almost every interstate cattle move into Maryland. Livestock imported into Maryland must meet the state’s interstate regulations and be accompanied by an approved Certificate of Veterinary Inspection or permit, and the CVI must be issued by an accredited veterinarian within 30 days before the animals’ entry into the state, showing that the listed animals meet Maryland’s health requirements.

An accredited veterinarian fills out the CVI after examining the herd and recording test results, vaccination dates, and official ID numbers. Electronic CVIs (eCVIs) are increasingly accepted alongside paper originals, but check with your originating state’s veterinarian on which format Maryland’s inspectors will accept at the point of entry. A CVI with missing ID numbers, expired test dates, or an unaccredited signature is functionally worthless — it will be rejected the same as no certificate at all.

• Veterinarian’s accreditation number and signature
• Individual animal ID matching official ear tags
• Test dates and results for brucellosis/TB where applicable
• Origin premises address and destination address in Maryland
• Issue date within the 30-day window before arrival

Entry Permits From Maryland Animal Health

Most routine cattle moves into Maryland travel on a CVI alone, without a separate entry permit. But certain circumstances — non-compliant test status, quarantine conditions, or unusual class exceptions — require direct coordination with the state’s Animal Health Program before the truck loads.

Applications for special permits go through the same office that oversees the rest of Maryland’s livestock health program. Applications for such permits must be made in writing by the person wishing to import the animals, sent to the Animal Health Program, Maryland Department of Agriculture, 50 Harry S. Truman Parkway, Annapolis, MD 21401, and processed by staff reachable at 410-841-5810. Advance notice matters: swine permits under similar rules require submission roughly 10 days ahead of movement, and cattle producers seeking a special permit should plan on a comparable lead time rather than calling the week of the move.

Pro Tip: If your load doesn’t clearly fit a standard CVI-only category — mixed classes, unusual origin herd status, or exhibition cattle with special handling needs — call the Animal Health Program before loading, not after the trailer is already rolling.

Brand Inspection and Proof of Ownership

Unlike range states in the West, Maryland does not run a formal brand inspection program for interstate cattle entry. There’s no brand clearance certificate to request and no state brand inspector meeting the truck at the scale. Proof of ownership instead runs through the paper trail: bills of sale, waybills, dealer records, and the CVI itself, which ties specific animals to a specific consignor and destination.

That’s a meaningful difference for producers used to brand-state paperwork. States like Wyoming require a brand inspection certificate before cattle leave the state, and Oregon’s cattle trespass framework leans heavily on brand records to resolve ownership disputes. Louisiana’s branding statutes work similarly. Maryland producers moving cattle out to any of those states still need to satisfy the destination state’s brand rules even though Maryland itself doesn’t require one on the way in.

Anyone buying or selling cattle through Maryland’s regulated channels should also know about the state’s dealer licensing structure. Maryland’s livestock dealer program operates under Chapter 03, covering health requirements for cattle passing through public stockyards, public sales, and farm-to-farm sales, according to the Maryland OneStop licensing portal. Licensed dealers keep transaction records that function as an additional ownership trail even without a formal brand system.

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

Cattle headed straight to slaughter get the lightest paperwork load of any class entering Maryland. Apparently healthy cattle of strictly slaughter type may be imported without a health certificate or disease test, provided they’re accompanied by a waybill and consigned to a recognized public stockyard or an approved slaughtering establishment, and they must be slaughtered within 10 days after arrival unless that period is extended by special permit.

Cattle passing through auction markets before returning to Maryland farms face a different standard entirely. Cattle originating from other states must be accompanied by an official interstate certificate fully complying with Maryland’s importation regulations for states not certified brucellosis-free, per COMAR 15.11.03.03. In practice, that means market cattle can’t lean on the slaughter exemption just because they’re passing through a stockyard — the exemption only applies when the animals are actually consigned for immediate slaughter, not resale.

Common Mistake: Assuming any trip through a public stockyard qualifies for the slaughter exemption. The waiver only applies when cattle are consigned directly to slaughter, not when they’re sold at auction for further movement or breeding.

Papers That Must Travel With the Load

The driver’s cab should hold a complete document set before the trailer leaves the origin farm. Missing even one item can mean a hold at the scale house or a rejected delivery once the truck reaches its Maryland destination.

1. Signed, original Certificate of Veterinary Inspection (or accepted eCVI) issued within 30 days of entry
2. Individual animal identification records matching official ear tags on the CVI
3. Brucellosis and/or tuberculosis test results, when the origin herd status requires them
4. Negative HPAI test documentation for lactating dairy cattle from states without Unaffected Status
5. Special entry permit number, if one was issued by the Animal Health Program
6. Waybill, if cattle are moving under the direct-to-slaughter exemption
7. Bill of sale or ownership documentation, especially for dealer or auction transactions

Pre-Load Checklist Before You Cross Into Maryland

Running through this list a week before loading day catches most problems while there’s still time to fix them.

1. Confirm the class and purpose of the move (breeding, dairy, feeder, slaughter, or exhibition) to determine which rules apply
2. Verify every animal has official individual ID matching what will appear on the CVI
3. Schedule brucellosis and TB testing with an accredited veterinarian if your herd’s origin status requires it
4. Check your origin state’s current NMTS status if shipping lactating dairy cattle, and arrange HPAI testing if required
5. Have the CVI issued within the 30-day entry window, not weeks in advance
6. Call Maryland’s Animal Health Program if your load involves a special circumstance requiring a separate permit
7. Pack a waybill if cattle are moving under the direct-to-slaughter exemption
8. Gather bills of sale or dealer records as backup ownership documentation

Where to Confirm Current Maryland Cattle Import Rules

Regulations tied to disease status change faster than most printed guides can keep up with, especially around HPAI testing thresholds. The Maryland Department of Agriculture’s Animal Health cattle page posts dated updates whenever testing requirements shift, and it’s the fastest way to confirm whether your origin state’s NMTS status has changed since you last checked.

Calling ahead also solves problems a webpage can’t. The Animal Health Program answers questions directly at 410-841-5810, and staff can confirm whether a specific herd’s documentation will clear entry before the truck ever loads. Because requirements depend on both Maryland’s rules and your origin state’s export conditions, it’s worth contacting the origin state’s animal health office as well — not just Maryland’s — since requirements vary and the destination state’s rules govern what’s ultimately acceptable.

Pro Tip: Bookmark MDA’s cattle page and check it again within a week of your scheduled move date. Testing thresholds tied to HPAI status can change with little advance notice.

Every interstate cattle move is really two sets of rules working at once: what your origin state requires you to document, and what Maryland requires to let the load in. Confirming both ends before the trailer rolls remains the single most reliable way to avoid a hold at the border.