To modify the presumption of service connection for veterans who were exposed to herbicide agents while serving in the Armed Forces in Thailand during the Vietnam era, and for other purposes.

Cost and committee reports

Official records Congress.gov attaches to H.R. 4843.

• Constitutional authority statementThe sponsor’s statement of where the Constitution gives Congress the power to pass this bill. Statement by Mr. WESTERMAN, as printed in the Congressional Record (Vol. 164, No. 11, January 18, 2018, Page H554):
  A bill to modify the presumption of service connection for veterans exposed to herbicides while serving in Thailand Article I, Section 8 ____________________
  Source: Congress.gov, Congressional Record January 18, 2018 ↗

  Evidence

  Field in the Congress.gov record

  constitutionalAuthorityStatementText

  Statement length

  157 characters

  Congress.gov bill record

  H.R. 4843, 115th Congress

  Congress.gov API record

  https://api.congress.gov/v3/bill/115/hr/4843

  Record last updated by Congress.gov

  December 5, 2025

  PORKER copy retrieved

  September 21, 2026

  Stored copy, SHA-256 of the file

  7395330e3ef340183d8fa3239b4189f3cd8f2390fb6a0d146cfcdb49346baadc

  PORKER shows the statement exactly as printed, with the page markup removed. It is the sponsor’s claim; it is not a legal finding.

Congress.gov’s record for this bill does not list a CBO cost estimate or a committee report (as of December 5, 2025). Not every bill gets one.

From the Congress.gov bill record for H.R. 4843, last updated December 5, 2025. PORKER’s copy was retrieved September 21, 2026 and is refreshed nightly. Open “Evidence” on any line for the record, field and file fingerprint.