Montana Titer Testing

Register Now

Some Montana employers require antibody testing, also known as titer testing, as part of their pre-employment screening process. Existing employees may also be tested periodically as part of the process to ensure safety in the workplace, especially for industries such as healthcare or education. Titer testing is the first step to determining if someone is immune to certain diseases, such as varicella (Chickenpox), hepatitis A, hepatitis B, hepatitis C, measles, mumps, rubella, or COVID-19. If the antibody test indicates that an individual is not immune, Health Street can also provide services for vaccines and immunizations.

To register online for a titer test in Montana, simply click the "Register Now" button below. To schedule via phone or to contact us with questions regarding your antibody testing services, please reach us at (888) 378-2499.

Choose an Antibody Test in Montana

Assess a person's immunity to infectious diseases with the antibody testing options provided by Health Street in Montana. Find the right test for you below.

Hepatitis A Antibody Test

(starting at $179)

Assess hepatitis A immunity.


Hepatitis B Antibody Test

(starting at $199)

Determine immunity to hepatitis B.


Hepatitis C Antibody Test

(starting at $219)

Evaluate immunity to hepatitis C.


Triple Hepatitis Package

(starting at $549)

Test for immunity to hepatitis A, B, and C in one go.


MMR Titer

(starting at $249)

Check immunity to measles, mumps, and rubella.


Varicella Titer

(starting at $189)

Confirm immunity to Chickenpox (varicella virus).


Triple Antibody Package

(starting at $595)

Detect antibodies for hepatitis B, MMR, and varicella.


Total Antibody Package

(starting at $895)

Comprehensive antibody testing for hepatitis A, B, C, MMR, and varicella.


Search for Antibody Test By City, State, or ZIP

Overview of Montana Regulations

Montana Antibody Testing Regulations

The state of Montana does not require vaccinations for adults, regardless of the industry in which they are employed. There are also no Montana antibody test regulations requiring proof of immunity for any type of employment.

For admittance into post-secondary schools, students must show proof of immunization against rubella and measles (rubeola). Montana's post-secondary schools may also impose requirements that are more stringent than those imposed by the state.

There are currently no Montana titer test regulations pertaining to students. However, most post-secondary institutions will allow for a titer (antibody) test to prove immunity to measles, mumps, and rubella in lieu of vaccination.

Montana Antibody Industry Regulations

The recently passed House Bill 702 prohibits Montana employers from mandating COVID-19 vaccines and protects employees from discrimination based on their vaccination status, making Montana the only state in the country with such strict restrictions. There are also no Montana antibody test regulations in place that would allow an employer to require proof of immunity to any disease as a condition of employment.

While President Biden ordered all large employers (with over 100 employees) to require COVID-19 vaccinations, the U.S. Supreme Court ruled that he did not have the power to mandate the vaccine for private businesses. Therefore, at this time, HB 702 applies to all Montana employers with no concern over a conflict with federal law.

One exception applies to the healthcare industry. President Biden's mandate requiring any healthcare facility or doctor who receives payment through CMS (Medicaid and Medicare) to have all employees vaccinated or risk having funding cut has been upheld. In response, the state of Montana has released CMS Vaccine Mandate Guidance, which healthcare employers and employees should reference.

Regardless of the requirements to prove vaccination status, there are currently no federal or Montana antibody test regulations allowing healthcare employers to require COVID-19 antibody tests as a requirement for employment.

Relevant Montana Laws, Acts, and Legislation

HB 702 – prohibits discrimination based on vaccination status or having an immunity passport

Frequently Asked Questions

Does Montana require you to test?

There are currently no Montana titer test requirements for university students or employees, regardless of industry. Montana employers are also prohibited from mandating vaccines or inquiring about vaccination status.

What do titer tests test for?

A titer test measures the number of antibodies in a blood sample. If the sample has a high enough level, the individual is deemed to be immune to the disease and exempt from vaccination.

Why are antibody tests important?

Antibody testing can determine if a person has immunity against certain diseases. This process may be necessary for those who are unsure of their vaccination status, or for employers that require proof of immunity to diseases. Testing for antibodies in the blood is also commonly performed to avoid unnecessary vaccinations for someone who has already developed immunity.

How much do antibody tests (titer tests) cost?

This depends on which type of antibody test is ordered. Health Street offers a variety of individual antibody testing services as well as package deals. For a comprehensive list of antibody tests and pricing, take a look at our antibody test registration page.

How long are titer tests good for?

Titer test results are records of whether a person has tested positive or negative for immunity against certain diseases. Depending on the type of disease, some employers may require employees to periodically test for antibodies, and may require employees to receive certain vaccinations before they are permitted to work. The frequency of testing depends on many factors, including the industry and the type of disease or vaccine. For more information about specific diseases and the recommended vaccine schedule, try taking a look at our Vaccines & Immunizations page.


"50-State Chart on Vaccines, Exemptions and Related State Issues." Fisher Phillips,
Mrachek, Jacqueline; Zuba, Carly; and Kirkpatrick, Josh. "Montana Releases FAQs on Vaccine Discrimination Law." Littler, 4 August 2021,,the%20Montana%20Human%20Rights%20Act.
"Immunization Requirements." Montana State University,
Ehrlick, Darrell. "UPDATED: Everything you still may want to know about HB702 (but were too afraid to ask)." Daily Montanan, 26 January 2022,
"Fact Sheet: Biden Administration Announces Details of Two Major Vaccination Policies." The White House, 4 November 2021,
"CMS Vaccine Mandate Guidance." Montana Department of Labor & Industry,