Animal Care Technician Job Description

An Animal Care Technician runs the daily husbandry in a research animal facility, the vivarium where mice, rats, zebrafish, rabbits and other species live while they take part in studies. BLS groups the work with veterinary assistants under the title laboratory animal caretaker. Whatever the title on the badge, the technician is the person who sees every cage, every day.

A typical shift starts with a room check. The technician walks the racks, confirms each cage has food and a working water source, reads the room's temperature and humidity, and looks at the animals themselves: a hunched mouse, a rat with a rough coat, a cage where one animal is losing weight. Those observations go to the veterinary staff, and they can be the first warning that something is wrong with an animal, a strain or the room.

The rest of the day is a mix of routine and precision. Rodent cages are changed in a change station or a biosafety cabinet, one cage at a time, so cards and labels stay with the right animals. Dirty caging moves to the cage wash, where tunnel washers, rack washers and autoclaves turn it around for the next change. Technicians receive new shipments, place animals in quarantine, set up breeding cages, wean litters, and keep census counts that investigators and auditors rely on. In facilities that allow it, they restrain animals and help with dosing, blood draws and weighing.

The rules behind the work come from several places. The Guide for the Care and Use of Laboratory Animals describes the accepted standards for the care and housing of research animals and for the design and upkeep of the facilities they live in. The Public Health Service Policy reaches live vertebrate species, mice and rats included, and NIH describes some of the animals it covers as not covered by the Animal Welfare Act. Each study runs under a protocol approved by the institution's animal care and use committee, and the technician's records are how that committee, the attending veterinarian and outside inspectors confirm the protocol was followed.

That paperwork may matter more. On Sept. 21, 2026, NIH asked institutions with an Animal Welfare Assurance about the feasibility of reporting live vertebrate animal numbers every year, including mice and rats, in line with what is already reported for species covered by the Animal Welfare Act, with responses due Dec. 21, 2026. A census kept carefully on the floor is the raw material for any such report.

The job is physical. Technicians lift racks and bags of bedding, stand for long stretches, and work in gowns, gloves, masks and sometimes respirators to protect both the animals and themselves from allergens and pathogens.

Education. BLS lists a high school diploma or equivalent as the typical entry-level education for veterinary assistants and laboratory animal caretakers, with short-term on-the-job training. An associate or bachelor's degree in animal science, biology or veterinary technology can help, but it is not needed to start.

Training on the job. New technicians usually learn one room or one species first, then take on cage wash, breeding colonies, quarantine and procedure support as they show they can follow the facility's standard operating procedures. Facility-specific training covers barrier entry order, personal protective equipment, euthanasia policy where the technician has a role, and the record systems used for census and health observations.

Certification. The American Association for Laboratory Animal Science (AALAS) awards three technician levels: Assistant Laboratory Animal Technician (ALAT), Laboratory Animal Technician (LAT) and Laboratory Animal Technologist (LATG). BLS notes that certification is not mandatory, but it lets workers demonstrate competency in animal husbandry, health and welfare, and facility administration. Under the handbook revised February 2026:

• Candidates must meet one of the handbook's combinations of education and lab animal work experience, and AALAS counts a work year as 1,950 hours.
• The ALAT exam has 120 questions in 2 hours, the LAT 155 questions in 2.5 hours, and the LATG 180 questions in 3 hours, delivered through Prometric.
• Exam fees are $175 for ALAT, $225 for LAT and $275 for LATG, plus a $75 processing fee for nonmembers.
• Certification is held for life. The separate Technician Certification Registry runs on a 2-year cycle and asks for 10 continuing education units at ALAT, 14 at LAT and 24 at LATG.

For the ALAT exam, the handbook asks for 2 years of lab animal work with a high school diploma or GED, 1 year with an associate degree, or half a year with a bachelor's degree. The LAT and LATG exams ask for more experience, or half a year of work after earning the previous certification.

Skills that matter. Gentle, confident handling and restraint of rodents and other species; a sharp eye for small changes in behavior and appearance; accurate record keeping on cage cards and electronic census systems; comfort with autoclaves, washers and ventilated rack systems; and the discipline to follow the same procedure the same way every time, because variation in care becomes variation in the data.

Physical and safety demands. BLS reports that veterinary assistants and laboratory animal caretakers have one of the highest rates of injuries and illnesses of all occupations. Workers may be bitten, scratched or kicked, and may be hurt while holding or restraining an animal, so safe restraint technique is part of training from the first week.

BLS projects employment of veterinary assistants and laboratory animal caretakers to grow 9 percent from 2025 to 2035, with about 23,200 openings a year on average. Those figures cover the whole occupation, which counted 132,100 jobs in 2025; BLS does not project lab animal caretakers separately. For the research side, BLS says laboratory animals will continue to be needed in the scientific research process to help ensure the safety and efficacy of new medical, surgical and pharmacological techniques, and expects this to create demand for laboratory animal caretakers.

Pay varies by setting. In May 2025, OEWS counted 113,130 of the occupation's 126,580 jobs in veterinary services, and the national median for the whole occupation was $38,150. In scientific research and development services the median was $49,230, and in colleges, universities and professional schools, which employed 4,840 workers in the occupation, it was $47,860. Pharmaceutical and medicine manufacturing reported a median of $40,820. Those industry figures are what an Animal Care Technician in a research facility should compare an offer against, not the clinic-heavy national number.

Federal agencies took steps to reduce animal testing in 2025 and 2026. The FDA's 2025 roadmap set specific timeframes for phasing out animal testing where equivalent or better alternatives exist. In an April 20, 2026 progress report, the agency said it had released draft guidance on reducing or eliminating nonhuman primate testing in monoclonal antibody development. On May 29, 2026 it issued a separate draft guidance for certain cancer drugs that recommends steps such as using a single relevant species instead of two. Both were issued as drafts.

At least one NIH institute has said it will keep supporting animal-based grants where they are justified. In an Oct. 6, 2026 director's message, the National Heart, Lung, and Blood Institute said it is well positioned to advance human-based research while continuing to support animal-based grants when scientifically appropriate, justifiable and conducted under proper animal welfare oversight. The same message encouraged the replacement, reduction and refinement of animal use in heart, lung, blood and sleep research. For an Animal Care Technician, the message suggests animal work continues even as the mix of studies may shift.

Advancement follows the AALAS ladder and the facility's own structure: senior technician, lead or trainer, then supervisor and facility manager, with paths into research technician roles inside an investigator's lab, into veterinary technology, or into compliance and training jobs that support the animal care and use committee. Contract research organizations, academic medical centers, government labs and animal breeders each offer a different mix of species, scale and schedule, so it pays to ask in interviews what species the facility houses, how cage changes are scheduled, and how certification is supported.

Dear Hiring Manager,

I am applying for the Animal Care Technician opening in your rodent facility. For the past two years I have worked as an animal care attendant in a university vivarium, covering four mouse rooms and the cage wash, and I passed my ALAT exam this spring.

My routine is the one your posting describes: daily health checks, cage changes in a ventilated change station, census updates, and turning soiled caging around through the tunnel washer and autoclave. I also run the weaning schedule for two transgenic breeding colonies, which taught me how much an investigator depends on a correct tail tag and an accurate litter date. When a colony record and a cage card disagree, I stop and resolve it before anything moves.

The part of the job I take most seriously is the morning walk-through. Last winter I noticed a cage of older mice that were less active than usual and slow to eat, and I reported it to our veterinary technician rather than waiting for the next scheduled check. The animals had a water valve that had partly failed. It was a small catch, but it is the kind I try never to miss.

I am comfortable gowning for barrier rooms, I follow entry order rules without shortcuts, and I am happy to take my share of weekend and holiday coverage. I am studying for the LAT exam and would welcome a facility that supports that goal and offers experience with additional species.

Thank you for considering my application. I would be glad to talk about how I can support your team and your investigators.

Sincerely,

Jordan Ellis