VA BENEFITS REFERENCE
Chloracne Or Consistent Acneform Disease And Related Presumptive Pathways
Official presumptive service rules for Chloracne or consistent acneform disease and 2 conditions sharing these pathways, including listed locations, dates, criteria and sources.
These 3 named conditions share the service pathways reproduced below. Their diagnosis must still match the condition named in the governing source. Each row retains its own dates and limitations. Listing a condition does not decide an individual award.
Conditions In This Reference
- Chloracne or consistent acneform disease
- Early-onset peripheral neuropathy
- Porphyria cutanea tarda
The table uses Chloracne or consistent acneform disease as the row label; the same listed pathways apply to each condition above. Source-specific diagnoses remain distinct.
| Condition | Exposure | Listed Service Locations | Service Dates | Criteria And Sources |
|---|---|---|---|---|
| Chloracne or consistent acneform disease | Agent Orange | Republic of Vietnam and inland waterways | January 9, 1962 through May 7, 1975 | Must become manifest to at least 10% within one year after the last qualifying herbicide exposure. The diagnosis and exposure evidence must meet the cited rule. Qualifying service in Vietnam, including its inland waterways; no minimum period is specified. 38 U.S.C. 1116, 1116A, 1116B; 38 CFR 3.307 and 3.309. Verified 2026-10-25. Source 1 · Source 2 · Source 3 · Source 4 |
| Chloracne or consistent acneform disease | Agent Orange | Specified offshore waters of Vietnam | January 9, 1962 through May 7, 1975 | Must become manifest to at least 10% within one year after the last qualifying herbicide exposure. The diagnosis and exposure evidence must meet the cited rule. Vessel service within the statutory area extending no more than 12 nautical miles seaward of the Vietnam-Cambodia demarcation line and the coordinates in 38 U.S.C. 1116A(d). It is not a generic 12-mile distance from any coastline. 38 U.S.C. 1116, 1116A, 1116B; 38 CFR 3.307 and 3.309. Verified 2026-10-25. Source 1 · Source 2 · Source 3 · Source 4 · Source 5 |
| Chloracne or consistent acneform disease | Agent Orange | U.S. or Royal Thai military bases in Thailand | January 9, 1962 through June 30, 1976 | Must become manifest to at least 10% within one year after the last qualifying herbicide exposure. The diagnosis and exposure evidence must meet the cited rule. Service at any U.S. or Royal Thai base, without a perimeter-duty or military-specialty restriction under the statute. 38 U.S.C. 1116, 1116A, 1116B; 38 CFR 3.307 and 3.309. Verified 2026-10-25. Source 1 · Source 2 · Source 3 · Source 4 |
| Chloracne or consistent acneform disease | Agent Orange | Laos | December 1, 1965 through September 30, 1969 | Must become manifest to at least 10% within one year after the last qualifying herbicide exposure. The diagnosis and exposure evidence must meet the cited rule. Covered active service in Laos. 38 U.S.C. 1116, 1116A, 1116B; 38 CFR 3.307 and 3.309. Verified 2026-10-25. Source 1 · Source 2 · Source 3 · Source 4 |
| Chloracne or consistent acneform disease | Agent Orange | Mimot or Krek, Kampong Cham Province, Cambodia | April 16, 1969 through April 30, 1969 | Must become manifest to at least 10% within one year after the last qualifying herbicide exposure. The diagnosis and exposure evidence must meet the cited rule. The statutory location is limited to Mimot or Krek in Kampong Cham Province. 38 U.S.C. 1116, 1116A, 1116B; 38 CFR 3.307 and 3.309. Verified 2026-10-25. Source 1 · Source 2 · Source 3 · Source 4 |
| Chloracne or consistent acneform disease | Agent Orange | Guam, American Samoa and their territorial waters | January 9, 1962 through July 31, 1980 | Must become manifest to at least 10% within one year after the last qualifying herbicide exposure. The diagnosis and exposure evidence must meet the cited rule. Covered active service in either territory or its territorial waters. The statute and current VA disability page specify July 31. 38 U.S.C. 1116, 1116A, 1116B; 38 CFR 3.307 and 3.309. Verified 2026-10-25. Source 1 · Source 2 · Source 3 · Source 4 |
| Chloracne or consistent acneform disease | Agent Orange | Johnston Atoll and ships calling there | January 1, 1972 through September 30, 1977 | Must become manifest to at least 10% within one year after the last qualifying herbicide exposure. The diagnosis and exposure evidence must meet the cited rule. Service on Johnston Atoll or aboard a ship that called at the atoll. 38 U.S.C. 1116, 1116A, 1116B; 38 CFR 3.307 and 3.309. Verified 2026-10-25. Source 1 · Source 2 · Source 3 · Source 4 |
| Chloracne or consistent acneform disease | Agent Orange | In or near the Korean Demilitarized Zone | September 1, 1967 through August 31, 1971 | Must become manifest to at least 10% within one year after the last qualifying herbicide exposure. The diagnosis and exposure evidence must meet the cited rule. The current statutory window in 38 U.S.C. 1116B is used. The older April 1968 starting date still printed in 38 CFR 3.307 is not used to narrow it. 38 U.S.C. 1116, 1116A, 1116B; 38 CFR 3.307 and 3.309. Verified 2026-10-25. Source 1 · Source 2 · Source 3 · Source 4 · Source 5 |
| Chloracne or consistent acneform disease | Agent Orange | Affected C-123 aircraft and associated Air Force units | Unit-specific dates in VA tables span 1962 through 1986; verify the particular assignment period | Must become manifest to at least 10% within one year after the last qualifying herbicide exposure. The diagnosis and exposure evidence must meet the cited rule. Requires regular, repeated operation, maintenance or onboard service involving affected aircraft, with the Air Force or Reserve squadron and flight, ground-maintenance or medical duties described in 38 CFR 3.307(a)(6)(v). A listed year or base alone is insufficient. 38 U.S.C. 1116, 1116A, 1116B; 38 CFR 3.307 and 3.309. Verified 2026-10-25. Source 1 · Source 2 · Source 3 · Source 4 · Source 5 |
Read The Exposure Rules
Official Sources
Last verified 2026-10-25. Source publication or legal effective dates are shown separately where available.
- www.va.gov/disability/eligibility/hazardous-materials-exposure/agent-orange/
- uscode.house.gov/us/usc/119-124/t38/s1116/
- www.ecfr.gov/current/title-38/section-3.307
- www.ecfr.gov/current/title-38/section-3.309
- uscode.house.gov/us/usc/119-124/t38/s1116A/
- uscode.house.gov/us/usc/119-124/t38/s1116B/
- www.va.gov/resources/c-123-aircraft-agent-orange-exposure-and-disability-compensation/
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