Vietnam Veterans Liver Fluke Cancer Study Act
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Would direct the Department of Veterans Affairs to conduct an epidemiological study on bile duct cancer (cholangiocarcinoma) in veterans who served in the Vietnam theater, and to report findings and recommendations to Congress. The bill also makes a minor technical change to a pension payment limitation deadline.
Liver fluke parasites found in parts of Southeast Asia have been linked to cholangiocarcinoma, and researchers have suspected elevated rates among Vietnam veterans; the bill would produce the first systematic federal data on the question.
What this bill would do
What it would do
The bill would require the VA, in consultation with the Centers for Disease Control and Prevention, to commence an epidemiological study within 120 days of enactment on the prevalence of cholangiocarcinoma (bile duct cancer) among veterans who served in the Vietnam theater of operations. The study would draw on the Veterans Affairs Central Cancer Registry and the National Program of Cancer Registries, and would identify incidence rates in Vietnam veterans compared to the general U.S. population from the start of the Vietnam era through enactment, broken down by age, gender, race, ethnicity, and geographic location at diagnosis. After the study is complete, the VA would submit an initial report to Congress with results and recommendations, and would submit periodic follow-up reports using ongoing cancer registry tracking.
The bill would also make a narrow technical amendment to title 38 of the U.S. Code, extending a deadline in the limitation-of-pension-payments provision by one month — from November 30, 2031, to December 31, 2031. The bill does not itself authorize new benefits, establish presumptive service connection, or appropriate funds for the study.
Key provisions
- 1Would direct the VA, in consultation with the CDC, to commence an epidemiological study within 120 days on cholangiocarcinoma prevalence in Vietnam theater veterans, using VA and national cancer registry data.
- 2Would require the study to identify incidence rates in Vietnam veterans and the general U.S. population, broken down by age, gender, race, ethnicity, and geographic location at diagnosis.
- 3Would require the VA to submit an initial report to Congress within one year of study completion, including results and recommendations for administrative or legislative action.
- 4Would require the VA to track cholangiocarcinoma in covered Vietnam veterans through the VA Central Cancer Registry and include that data in periodic follow-up reports to Congress.
- 5Would amend 38 U.S.C. § 5503(d)(7) to extend a pension payment limitation deadline by one month, from November 30, 2031, to December 31, 2031.
Who would be affected
Vietnam-era veterans who served in the Vietnam theater of operations are the primary population studied. The VA and the CDC would carry out the research and reporting requirements. Congress would receive the study results and recommendations. Researchers and policymakers using VA cancer registry data would also be affected by the new tracking mandate.
Why it matters
If enacted, Vietnam veterans and their advocates would gain the first comprehensive federal dataset on whether bile duct cancer is more prevalent in this population — data that could eventually support claims for VA benefits or presumptive service-connection designations. Without the study, veterans with cholangiocarcinoma lack a systematic evidentiary basis for connecting their illness to Vietnam service.
What would change
Changes to existing law
Amends 38 U.S.C. § 5503(d)(7) (Sec. 3)
Changes the limitation-of-pension-payments deadline from November 30, 2031, to December 31, 2031 — a one-month extension.
Agencies directed to act
Effective dates
- VA must commence the epidemiological study
- Initial report to Congress due after study completion
How implementation would work
The VA must begin the epidemiological study within 120 days of enactment, in consultation with the CDC. The study draws on existing registry data — the VA Central Cancer Registry and the National Program of Cancer Registries — rather than new data collection. After completion, the VA has one year to submit an initial report to Congress with results and any recommended legislative or administrative actions. The VA must then submit periodic follow-up reports, on a schedule it determines, incorporating ongoing cancer registry tracking. No rulemaking is specified; the VA Secretary has discretion over the follow-up reporting cadence.
Legislative status & sources
Latest action
Received in the Senate and Read twice and referred to the Committee on Veterans' Affairs.
Official CRS summary
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This bill requires the Department of Veterans Affairs (VA) to conduct an epidemiological study and report on the prevalence of cholangiocarcinoma (bile duct cancer) in veterans who served in the Vietnam theater of operations during the Vietnam era. The study must identify the rate of incidence of cholangiocarcinoma in such veterans and in U.S. residents.
The bill also requires the VA to track and report on the prevalence of cholangiocarcinoma using the Veterans Affairs Central Cancer Registry. Additionally, the VA must periodically submit follow-up reports to Congress regarding the epidemiological study and information collected from the cancer registry regarding the prevalence of bile duct cancer.
Legislative subjects
Armed Forces and National Security; Asia; Cancer; Conflicts and wars; Congressional oversight; Government studies and investigations; Health information and medical records; Medical research; Veterans' medical care; Vietnam