Fort McClellan Exposure VA Claims: What VA Says and How to File (2026)

Fort McClellan, near Anniston, Alabama, trained Chemical Corps, Military Police and Women's Army Corps soldiers for decades. Many veterans who served there believe their illnesses trace back to the base. This guide explains what VA itself says about Fort McClellan exposures, what that does and does not mean for a disability claim, and how a veteran can file on a direct basis. If you served in Alabama or want state-specific resources, see our Alabama veterans guide.

What does VA say about Fort McClellan exposures?

VA's public health page on Fort McClellan says the Army base opened in 1917 and closed in 1999 under the Base Realignment and Closure (BRAC) program. It was a major training site for the Army Chemical Corps School, the Army Combat Development Command Chemical/Biological/Radiological Agency, the Army Military Police School and the Women's Army Corps.

VA says some people may have been exposed to hazardous materials there, but that "the available data suggests that any exposures would have likely occurred at low levels." The potential exposures VA lists are:

• Radioactive compounds. Cesium-137 and cobalt-60 were used in training exercises and radiological surveys in isolated areas. VA says they were handled mostly under controlled conditions and that there is no clear evidence of exposures at Fort McClellan to levels that would lead to adverse health effects.
• Chemical warfare agents. Mustard gas and nerve agents were used for decontamination training in isolated locations, in small amounts and controlled environments with safety measures. VA says data on specific exposure levels for personnel is limited.
• Fog oil and hexachloroethane (HC) smoke. These were used to create smoke for training, sometimes without consistent protective gear. VA notes fog oils used before 1986 contained potentially harmful ingredients, and that data on actual exposure levels is limited.
• PCBs from the Monsanto plant. From 1929 to 1971 an off-post Monsanto chemical plant south of the base in Anniston released PCBs into the environment, and the surrounding community was exposed. VA says studies since the 1990s found elevated PCB levels in Anniston residents, but there is limited data on PCB exposure levels for Fort McClellan personnel.

Is there a presumption for Fort McClellan veterans?

No. As of this article's date (October 31, 2026), we found no presumptive condition or presumptive exposure for Fort McClellan:

• VA's Fort McClellan page lists potential exposures but no presumptive conditions, and says there is no VA environmental health registry associated with service at the base.
• The PACT Act (Public Law 117-168) addresses Fort McClellan only in Section 801, which directs VA to conduct an epidemiological study on the health trends of veterans who served at Fort McClellan at any time from January 1, 1935 to May 20, 1999. A study is not a presumption.
• VA's PACT Act page explains that a presumptive condition is one established by law or regulation, so that you do not have to prove your service caused it. VA's Fort McClellan page does not identify the base as a presumptive location. See our PACT Act presumptive conditions guide and complete guide to VA presumptive conditions for what is covered.

VA also says it is reviewing historical documentation to design the Section 801 study. If a presumption is ever added, it would have to come from a law or a VA regulation, so check the Fort McClellan page and our PACT Act posts for updates.

What bills has Congress considered?

Congress.gov blocks automated access, so we checked the Government Publishing Office's govinfo bulk data (BILLSTATUS files) instead. Here is exactly what that showed:

• H.R. 2825, 117th Congress. Introduced April 22, 2021 as the Fort McClellan Health Registry Act, which would have required VA to maintain a registry of veterans stationed at the base. In the govinfo BILLSTATUS record, that bill number carries the title "Honoring our PACT Act of 2022," with a latest action of June 16, 2022 ("Message on Senate action sent to the House"). Fort McClellan's only appearance in the enacted PACT Act is the Section 801 study described above.
• 119th Congress (current). We searched the govinfo BILLSTATUS files for all House and Senate bills in the 119th Congress (data last updated October 31, 2026) for the phrase "Fort McClellan" and found no bill that mentions it. These files cover bill titles, summaries and actions rather than full bill text, so a bill that mentions Fort McClellan only in its text could be missed.

In short, we found no pending bill that would create a Fort McClellan presumption. Do not wait on legislation to file: you can file now.

How do I file a Fort McClellan claim on a direct basis?

Direct service connection means the evidence itself shows your condition is connected to your service. Under 38 CFR § 3.303(a), service connection means the facts, shown by evidence, establish that a particular injury or disease resulting in disability was incurred coincident with service. VA considers each condition "on the basis of the places, types and circumstances of his service as shown by service records, the official history of each organization in which he served, his medical records and all pertinent medical and lay evidence," and administers the law under a broad and liberal interpretation consistent with the facts of each case.

In practical terms, a direct claim for a Fort McClellan-related condition generally rests on three things:

1. A current diagnosis from a medical provider.
2. Evidence of what happened in service: that you were at Fort McClellan, when, in what unit or school, and what you did or were around.
3. A medical link between the two, usually a nexus letter or independent medical opinion.

Filing steps

1. Consider an intent to file. VA says that if you file on paper, an intent to file can protect a possible earlier effective date while you gather evidence. Filing online sets the date automatically when you start. See our intent to file (VA Form 21-0966) guide.
2. File the claim. VA lists five ways to file: online, by mail using VA Form 21-526EZ, in person at a regional office, by fax, or with an accredited attorney, claims agent or VSO.
3. Describe the exposure in your own words. Name the condition, the dates at Fort McClellan, your school or unit, and the training or duties involved.
4. Gather and submit evidence. VA says you do not have to submit evidence with your claim, but you have up to a year from the date VA receives the claim to turn evidence in, and VA may schedule a claim exam. See our guide to the C&P exam.

Our guide to filing a PACT Act claim walks through the same filing mechanics, even though Fort McClellan itself is not a PACT Act presumptive location.

What evidence helps a Fort McClellan claim?

VA's claim page says supporting documents can include VA and private medical records, and supporting statements from family, friends, clergy, law enforcement or people you served with. VA also reviews your DD214 and service treatment records. For Fort McClellan, think about:

• Records showing you were stationed at or trained at Fort McClellan, with dates (DD214, orders, training certificates, unit assignment records)
• Records or statements showing what you did there, such as chemical decontamination training, radiological surveys, smoke training or field exercises
• Medical records showing when your condition was first diagnosed and treated
• A personal statement describing the exposure events, symptoms and when they began (see our lay evidence guide)
• Buddy statements from people who trained or served with you
• A medical opinion that addresses the link between your condition and your time at the base

Because VA says its own data on exposure levels for personnel is limited, your own documentation of what you did at the base matters. Our types of VA claim evidence guide explains what each kind of evidence can show.

What should a nexus letter address?

A nexus letter is a medical provider's written opinion on whether your condition is related to your service. For Fort McClellan, a useful opinion generally:

• Identifies your diagnosis and confirms the provider reviewed your records
• Describes the in-service exposure or events you reported at Fort McClellan
• Explains the medical reasoning connecting that exposure to your condition, citing medical literature where appropriate
• States the provider's credentials

Be realistic about the science. VA's own page says exposure levels were likely low and the data is limited, so a strong opinion needs a reasoned explanation specific to you, not a generic statement. Some veterans ask their VA doctor first; see whether your VA doctor can write a nexus letter. Others look at free nexus letter options or paid options (nexus letter costs). Whichever route you choose, VA decides how much weight to give the opinion.

If you already have a service-connected condition and a new condition is caused or worsened by it, a different route may apply: secondary service connection.

Can I get VA health care or a screening?

Separate from disability compensation, VA encourages veterans with health issues they believe are related to Fort McClellan service to see their primary care provider or local environmental health clinician. VA's PACT Act page says veterans enrolled in VA health care receive a toxic exposure screening, and that you may be eligible to enroll if you were exposed to toxins or hazards during service, including chemicals, radiation and warfare agents. Check VA health care eligibility for your situation. If you are comparing exposure claims, our guides on Camp Lejeune water contamination and radiation exposure claims show how presumptive pathways work where they exist.

What if VA denies the claim?

A denial is not always the end. If you have new and relevant evidence, such as a stronger medical opinion or records showing your duties at the base, a supplemental claim lets VA take another look. You can also request a higher-level review or appeal to the Board of Veterans' Appeals. An accredited representative can help you choose.

Sources

• VA Public Health: Fort McClellan
• Public Law 117-168 (PACT Act), Section 801
• VA: The PACT Act and your VA benefits
• VA: How to file a VA disability claim
• 38 CFR § 3.303
• govinfo BILLSTATUS: H.R. 2825 (117th Congress)

Frequently Asked Questions