Livestock Biosecurity Requirements in Colorado: What Every Producer Needs to Know

Colorado’s livestock industry is a cornerstone of the state’s agricultural economy, and protecting it starts on your own property. Whether you run a commercial cattle operation, a small hobby farm, or an exhibition facility, understanding and following livestock biosecurity requirements in Colorado is not optional — it is a legal and practical necessity.

Disease outbreaks can move fast, and the state’s regulatory framework is designed to give producers, state officials, and federal agencies the tools to contain threats before they spread. This guide walks you through each major area of Colorado’s biosecurity requirements so you know exactly where your obligations stand.

What Is Livestock Biosecurity and Why It Matters in Colorado

Biosecurity is the practice of controlling infectious disease, and it refers to everything done to keep diseases and the germs that cause them — viruses, bacteria, fungi, parasites, and other organisms — away from your animals, property, and the people who may interact with them. It is not a single action but a layered system of habits, physical barriers, and documented protocols.

This is very important whether your animals are on your farm, moving from one production site to another, going to auction, or participating in a show or event. Every point of contact is a potential entry point for disease.

Biosecurity not only protects you and your animals — it also protects your neighbors, employees, and, in the case of livestock and poultry, your consumers. For Colorado producers, the stakes are especially high given the state’s diverse livestock sectors, from large feedlot operations to small-scale cervid and camelid producers.

Livestock production is vitally important to the economy of Colorado, and registering your premises provides the means to respond quickly and effectively to limit the spread of disease and minimize losses to the state and protect your animals. In addition, the ability to trace and control the spread of animal diseases helps to ensure consumer confidence in a safe food supply.

Premises Registration and Identification Requirements in Colorado

One of the most fundamental biosecurity requirements in Colorado is premises registration. Before you can participate in animal health programs, obtain official identification tags, or request movement permits during a disease event, your location must be registered with the state.

A premises is any physical location where livestock animals are managed or held, which includes all locations where livestock is born, raised, marketed, or exhibited. Examples may include farms and hobby farms, veterinary clinics, stables, livestock markets, and livestock exhibitions.

You need a premises or location ID if you are associated with animal agriculture in any way, whether it be commercial production or exhibition. This even includes 4-H members, since county fairs, the Colorado State Fair, and other exhibitions — both in-state and out-of-state — require it as part of the enrollment process.

Cattle, bison, swine, sheep, goats, poultry, equine, cervids (deer, elk), camelids (llamas, alpacas), and aquaculture are all examples of species that would be registered under a premises identification number.

How the Premises Identification Number Works

A premises identification number is a unique code assigned to a physical location. Once a premises is established and registered with an identification number, it is tied to that physical location permanently, so there is no need to obtain a new number each year or re-register. However, since it is linked to that physical location, the premises identification number will not travel with you if you move, and you will need to obtain a new number for your new location.

If you raise livestock at multiple locations, there will need to be a unique premises identification number for each unique physical location. This ensures that in a disease emergency, officials can pinpoint exactly where animals are held without ambiguity.

Premises identification numbers can be used by animal health officials to quickly and precisely identify where animals are located in the event of a disease or food safety emergency. A PIN is required by producers to request movement permits during a disease outbreak or to apply for indemnity.

Individual Animal Identification

Beyond premises registration, individual animal identification is required for movement and import purposes. Health certificates must show the date of shipment, the names and addresses of the consignor and consignee, species of livestock, number, sex, breed, and age, and sufficient identifying brands, marks, tags, and other identification to positively identify the livestock. When available, NAIS-compliant RFID devices must be included along with GPS coordinates.

All cattle moving interstate for exhibition or show events are required to have official individual identification ear tags present in the ear. For sheep and goats, USDA-approved scrapie identification ear tags listing the flock of origin and individual number are required.

For more on how Colorado’s brand inspection system intersects with animal identification and movement, see this overview of brand inspection requirements in Colorado.

Biosecurity Plan Requirements in Colorado

While Colorado does not currently mandate a written biosecurity plan for all livestock producers in the same way some states require formal plans for specific operations, the Colorado Department of Agriculture strongly advises every producer to develop and maintain one. For certain regulated operations — including approved feedlots, alternative livestock facilities, and premises subject to disease control programs — documented biosecurity protocols are effectively required as a condition of operating status.

Veterinarians can help you start a biosecurity plan — just ask them. You should implement regular preventative veterinary care, such as vaccines and anti-parasitics. Discuss with your veterinarian what risks are in your area or could come to your area, and how they can be prevented or minimized.

To be effective, a minimum biosecurity plan should address isolating new animals, isolating animals returning to the herd, regulation of animal, human, and equipment movement, and the design and implementation of cleaning and disinfection procedures directed at the reduction of pathogen loads.

What Your Biosecurity Plan Should Cover

• Animal health monitoring: Regular observation schedules and criteria for identifying sick animals
• Isolation and quarantine protocols: Designated areas and procedures for new arrivals and sick animals
• Visitor and vehicle access rules: Who may enter, where they may go, and what sanitation steps they must follow
• Cleaning and disinfection schedules: Frequency and approved methods for housing areas, equipment, and vehicles
• Recordkeeping: Animal movement logs, veterinary treatment records, and mortality records
• Emergency response contacts: State Veterinarian’s office number (303-869-9130), your herd veterinarian, and USDA APHIS contacts

Keeping a written biosecurity and animal movement log as a standard practice on your operation is strongly advised. When a disease event occurs, this record becomes invaluable for traceability investigations and can demonstrate your good-faith compliance efforts to regulators.

Understanding how disease reporting obligations connect to your biosecurity plan is equally important. For a detailed look at what you are required to report and when, see this guide on livestock disease reporting in Colorado.

Animal Isolation and Movement Control Requirements in Colorado

Controlling how animals move onto, within, and off your premises is one of the most effective ways to prevent disease introduction. Colorado’s regulations address both the isolation of incoming animals and the broader movement control framework that applies during normal operations and disease emergencies.

Isolating New and Returning Animals

The basic tenets of external biosecurity include isolation of new animals, quarantine procedures, disease testing, preventive measures, and hygiene. The most prevalent means of introducing disease into a group of animals is via addition of new animals into the herd.

The concept of a “new animal” must include animals that have never resided on a farm as well as those returning after travel to offsite facilities such as shows, fairs, and breeding facilities. Animals commingled at other facilities undergo increased risk exposure and infection.

For imported wild ungulates and alternative livestock species, Colorado regulations are explicit. All imported wild ungulates, turkeys, and grouse must be held in isolation from other wildlife on the operator’s premises for at least 30 consecutive days upon importation into Colorado. Animals obtained from free-ranging wild stock by state or federal agencies are exempt from the isolation period.

Movement Permits and Health Certificates

Health certificates — also known as Certificates of Veterinary Inspection (CVIs) — are required on all livestock except livestock consigned directly to federally inspected slaughtering establishments and livestock moving to an approved market in Colorado from a farm of origin in an adjacent state within the normal trade area for that market.

All livestock entering the State of Colorado upon a public highway must clear through a port of entry. A certificate of veterinary inspection and/or a permit must accompany the shipment as stipulated.

A CVI is void 30 days after the date of its issuance. You must ensure that your health certificate is current at the time of movement. Any individual who fails to comply with Colorado livestock import rules may be liable for a civil fine of up to $1,000 per violation, in accordance with 35-50-118 C.R.S. Such fines may be levied on a per-head basis.

State Quarantine Authority

If an investigation reveals a credible risk of a reportable disease, the State Veterinarian has authority to issue a quarantine order restricting all movement of animals, equipment, and personnel from your premises. A quarantine does not necessarily mean your animals will be destroyed — it means movement is controlled while the situation is assessed.

Animals entering the state without a valid health certificate or permit number, or both if required, may be held in quarantine at the risk and expense of the owner until released by an authorized representative of the State Veterinarian.

If you transport livestock across state lines, understanding trailer requirements in neighboring states is also part of your compliance picture. See related guidance on livestock trailer requirements in Nevada and livestock trailer requirements in Pennsylvania.

Visitor, Vehicle, and Equipment Sanitation Rules in Colorado

People, vehicles, and equipment are among the most common — and most overlooked — disease vectors on any livestock operation. Colorado’s biosecurity guidance establishes clear expectations for how you manage access to your facility.

Controlling People Access

People can unknowingly carry diseases on their bodies or clothing. Do not allow anyone who was recently in a country where foreign animal diseases are present to have contact with your livestock or poultry for at least five days after they return to the United States. Do not allow anyone to wear any clothing, including footwear, around your livestock or poultry that they wore outside the United States.

Anyone regularly interacting with your animals, including family members, should have proper training on how to “cleanly” enter animal housing areas. For some facilities, such as swine or poultry facilities, this may mean completely showering in and showering out. For other livestock facilities, this may mean changing outerwear, foot baths, and/or using disposable boot covers.

Vehicle and Equipment Sanitation

The normal “ins” and “outs” for your facility can bring diseases to your animals. This can include “dirty” trucks accidentally carrying germs to your facility as they come and go during part of the normal business day — such as delivering feed, removing dead animals, or bringing replacement animals. Reduce this risk by clearly establishing “clean” and “dirty” areas where these vehicles are and are not allowed.

Livestock and poultry facilities can further reduce this risk by having vehicles go through cleaning stations before coming onto and/or exiting the premises.

Proper disinfection technique matters as much as the disinfectant itself. When cleaning areas that house your animals, remember the saying, “you can’t disinfect dirt.” This means you must clean before disinfecting. Most disinfectants do not work in the presence of organic materials like dirt, dust, and animal wastes. Different disinfectants require different minimum contact times to work, and longer times in cold temperatures. Follow the instructions on the label for the disinfectant you are using.

Wildlife and Pest Control Obligations in Colorado

Colorado’s landscape means that wildlife pressure on livestock operations is a year-round reality. Deer, elk, rodents, wild birds, and other species can introduce pathogens — including some of the most serious diseases in Colorado’s regulatory framework — directly into your herd.

Rodents, wild birds, raccoons, stray cats and dogs, and other wild animals can transmit diseases to your animals. The facility or housing where you keep your animals should stop wildlife from coming into direct contact with your animals.

Insect and Vector Control

Insects — flies, ticks, mosquitoes, and others — can give your animals diseases. The facility or housing where you keep your animals should prevent these pests from reaching your animals. When this is not possible, speak with your veterinarian about what you can do to protect your animals from these pests. Due to fluctuating temperatures year-round, you may need vector control year-round in Colorado.

Feed and Water Protection

Animal owners are responsible for ensuring their animals are eating safe and nutritious foods, using FDA-approved feeds or ensuring any food by-products or food ingredients arriving at their facility are from a reputable source. Store feed in a way that keeps wildlife — such as rodents — out of it.

Chronic Wasting Disease (CWD) and Cervid Operations

For producers managing alternative livestock such as elk, deer, or other cervids, wildlife interface carries additional regulatory weight. A positive diagnosis of CWD in an alternative livestock facility, including in a wild cervid within the exterior boundaries of the facility, subjects the herd to immediate quarantine by the State Veterinarian. The quarantine remains in place and no re-stocking of any fallow deer or elk is allowed until a herd plan has been successfully developed and approved by the State Veterinarian and the Division of Wildlife.

For producers who use livestock guardian dogs as part of their wildlife deterrence strategy, understanding the health and management needs of those animals is also part of maintaining a secure operation. See this resource on facts about livestock guardian dogs for background.

Dead Animal Disposal Requirements in Colorado

How you handle dead animals on your property is a critical biosecurity and regulatory obligation. Improper disposal creates disease risk for your remaining herd, attracts wildlife scavengers, and can result in regulatory violations under Colorado law.

Removal and Handling

Dead animals and animal waste should be removed from areas housing live animals as quickly as possible. Remove them using a separate entrance or exit from the one used to bring live animals into the facility. Dispose of dead animals where wildlife cannot feed on them.

This last point is not just a best practice — it directly connects to disease containment. Scavengers feeding on carcasses can spread pathogens across a wide geographic area, and in the case of CWD-positive cervids, the regulatory consequences of improper carcass handling are severe.

Approved Disposal Methods in Colorado

Colorado law and CDA guidance recognize several approved methods for dead animal disposal. The method you use may depend on the size of the animal, your location, local ordinances, and whether the animal died of a suspected or confirmed reportable disease.

• Burial: Permitted in many Colorado counties, subject to local regulations regarding depth, proximity to water sources, and soil conditions. Always check with your county before burying large animals.
• Composting: An increasingly common and CDA-recognized method for on-farm mortality management. Requires proper carbon-to-nitrogen ratios, adequate moisture, and monitoring to ensure complete decomposition.
• Rendering: Using a licensed rendering service removes carcasses from your property and processes them through a regulated facility.
• Incineration: Permitted with an appropriate incinerator and subject to air quality regulations administered by the Colorado Department of Public Health and Environment.
• Licensed landfill: Some Colorado landfills accept livestock mortalities; confirm acceptance policies and any required documentation before transport.

Recordkeeping for Mortalities

Maintaining mortality records is a sound biosecurity practice and a regulatory expectation for approved feedlots and alternative livestock facilities in Colorado. Your mortality log should include the date of death, species, individual animal identification, suspected or confirmed cause of death, and the disposal method used. These records support traceability investigations and demonstrate compliance to state inspectors.

For producers operating in states with similar mortality and disposal frameworks, reviewing how disease reporting obligations work in neighboring jurisdictions can provide useful context. See related guides on livestock disease reporting in California and livestock disease reporting in Illinois.

Staying Compliant and Protecting Your Operation

Meeting Colorado’s livestock biosecurity requirements is not a one-time task — it is an ongoing commitment that touches every part of your daily operation. From the moment a new animal arrives on your property to the way you handle a mortality, every decision either strengthens or weakens your farm’s disease defenses.

The most important steps you can take are registering your premises with the CDA, establishing a working relationship with an accredited veterinarian, documenting your biosecurity protocols in writing, and training everyone on your operation — family members included — to follow them consistently.

The Colorado Department of Agriculture Animal Health Division is your primary regulatory contact for all biosecurity, identification, and disease control matters. Reach them at 303-869-9130 or animalhealth@state.co.us, Monday through Friday, 8 a.m. to 5 p.m. The CDA Biosecurity 101 page also provides species-specific guidance and current outbreak alerts.

For producers who want to understand how Colorado’s biosecurity framework connects to adjacent regulatory areas, these resources provide additional context: brand inspection requirements in Washington, livestock trailer requirements in Wisconsin, and livestock disease reporting in Florida.