diff --git a/changelog.d/snap-abawd-foster-youth-indian-exemptions.added.md b/changelog.d/snap-abawd-foster-youth-indian-exemptions.added.md
new file mode 100644
index 00000000000..881fd468d2f
--- /dev/null
+++ b/changelog.d/snap-abawd-foster-youth-indian-exemptions.added.md
@@ -0,0 +1 @@
+SNAP ABAWD former foster youth exemption (7 CFR 273.24(c)(9), pre-HR1 only) with tests, and documentation plus test coverage notes for the post-HR1 IHCIA Indian exemption input.
diff --git a/policyengine_us/parameters/gov/usda/snap/work_requirements/abawd/age_threshold/former_foster_care.yaml b/policyengine_us/parameters/gov/usda/snap/work_requirements/abawd/age_threshold/former_foster_care.yaml
new file mode 100644
index 00000000000..6ce87f7dbbc
--- /dev/null
+++ b/policyengine_us/parameters/gov/usda/snap/work_requirements/abawd/age_threshold/former_foster_care.yaml
@@ -0,0 +1,15 @@
+description: The Department of Agriculture exempts individuals at or below this age who were in foster care under State responsibility on their 18th birthday from the Able-Bodied Adult Without Dependents (ABAWD) work requirements under the Supplemental Nutrition Assistance Program, before Public Law 119-21 removed this exception effective 2025-07-04.
+values:
+  2023-09-01: 24
+
+metadata:
+  unit: year
+  period: year
+  label: USDA SNAP ABAWD former foster youth age threshold
+  reference:
+    - title: 7 CFR § 273.24 - Time limit for able-bodied adults (c)(9)
+      href: https://www.law.cornell.edu/cfr/text/7/273.24#c_9
+    - title: Fiscal Responsibility Act of 2023, Section 311 - SNAP provisions
+      href: https://www.fns.usda.gov/snap/provisions-fiscal-responsibility-act-2023
+    - title: FNS ABAWD Exceptions Implementation Memorandum (October 3, 2025)
+      href: https://www.fns.usda.gov/snap/obbb-abawd-exemptions-implementation
diff --git a/policyengine_us/tests/policy/baseline/gov/usda/snap/eligibility/work_requirements/meets_snap_abawd_work_requirements.yaml b/policyengine_us/tests/policy/baseline/gov/usda/snap/eligibility/work_requirements/meets_snap_abawd_work_requirements.yaml
index 039629c0ffa..51766ca0fcf 100644
--- a/policyengine_us/tests/policy/baseline/gov/usda/snap/eligibility/work_requirements/meets_snap_abawd_work_requirements.yaml
+++ b/policyengine_us/tests/policy/baseline/gov/usda/snap/eligibility/work_requirements/meets_snap_abawd_work_requirements.yaml
@@ -500,3 +500,59 @@
     is_snap_abawd_discretionary_exempt: true
   output:
     meets_snap_abawd_work_requirements: true
+
+# 273.24(c)(9): Former foster youth aged 24 or younger
+# (pre-HR1 only — added by FRA 2023, removed by
+# P.L. 119-21 effective 2025-07-04)
+# =====================================================
+
+- name: Case 36, pre-HR1 former foster youth aged 24 exempt.
+  period: 2025-05
+  absolute_error_margin: 0.1
+  input:
+    age:
+      2025: 24
+    weekly_hours_worked_before_lsr:
+      2025: 1
+    is_disabled:
+      2025: false
+    was_in_foster_care:
+      2025: true
+    state_code:
+      2025: TX
+  output:
+    meets_snap_abawd_work_requirements: true
+
+- name: Case 37, pre-HR1 former foster youth aged 25 NOT exempt.
+  period: 2025-05
+  absolute_error_margin: 0.1
+  input:
+    age:
+      2025: 25
+    weekly_hours_worked_before_lsr:
+      2025: 1
+    is_disabled:
+      2025: false
+    was_in_foster_care:
+      2025: true
+    state_code:
+      2025: TX
+  output:
+    meets_snap_abawd_work_requirements: false
+
+- name: Case 38, post-HR1 former foster youth aged 24 NOT exempt.
+  period: 2025-08
+  absolute_error_margin: 0.1
+  input:
+    age:
+      2025: 24
+    weekly_hours_worked_before_lsr:
+      2025: 1
+    is_disabled:
+      2025: false
+    was_in_foster_care:
+      2025: true
+    state_code:
+      2025: TX
+  output:
+    meets_snap_abawd_work_requirements: false
diff --git a/policyengine_us/variables/gov/usda/snap/eligibility/work_requirements/is_snap_abawd_indian_exempt.py b/policyengine_us/variables/gov/usda/snap/eligibility/work_requirements/is_snap_abawd_indian_exempt.py
index 25a2b0e50e6..ca08051db27 100644
--- a/policyengine_us/variables/gov/usda/snap/eligibility/work_requirements/is_snap_abawd_indian_exempt.py
+++ b/policyengine_us/variables/gov/usda/snap/eligibility/work_requirements/is_snap_abawd_indian_exempt.py
@@ -5,6 +5,7 @@ class is_snap_abawd_indian_exempt(Variable):
     value_type = bool
     entity = Person
     label = "Exempt from SNAP ABAWD work requirements due to Indian, Urban Indian, or California Indian status"
+    documentation = "Indian or Urban Indian as defined in paragraphs (13) and (28) of section 4 of the Indian Health Care Improvement Act (25 U.S.C. 1603), or California Indian described in section 809(a) of that Act (25 U.S.C. 1679(a)), exempt under 7 U.S.C. 2015(o)(3)(F)-(G) as added by P.L. 119-21. Input variable defaulting to false: survey data do not identify IHCIA status, so this is populated at the data layer (populace) or set explicitly in household simulations."
     definition_period = YEAR
     reference = (
         "https://www.congress.gov/119/plaws/publ21/PLAW-119publ21.pdf#page=11",
diff --git a/policyengine_us/variables/gov/usda/snap/eligibility/work_requirements/meets_snap_abawd_work_requirements.py b/policyengine_us/variables/gov/usda/snap/eligibility/work_requirements/meets_snap_abawd_work_requirements.py
index 023cc58aaab..1f55cd62da6 100644
--- a/policyengine_us/variables/gov/usda/snap/eligibility/work_requirements/meets_snap_abawd_work_requirements.py
+++ b/policyengine_us/variables/gov/usda/snap/eligibility/work_requirements/meets_snap_abawd_work_requirements.py
@@ -59,11 +59,20 @@ def formula(person, period, parameters):
             | is_pregnant
             | is_discretionary_exempt
         )
-        # Pre-HR1 exemptions: homeless, veteran
+        # Pre-HR1 exemptions: homeless, veteran, former foster youth
         is_homeless = person.household("is_homeless", period)
         is_veteran = person("is_veteran", period)
+        # 7 CFR 273.24(c)(9): aged 24 or younger and in foster care under
+        # State responsibility on their 18th birthday (added by the Fiscal
+        # Responsibility Act of 2023, removed by P.L. 119-21).
+        was_in_foster_care = person("was_in_foster_care", period)
+        former_foster_youth = was_in_foster_care & (
+            age <= p_pre.age_threshold.former_foster_care
+        )
         post_hr1_conditions = base_conditions | is_indian_exempt
-        pre_hr1_conditions = base_conditions | is_homeless | is_veteran
+        pre_hr1_conditions = (
+            base_conditions | is_homeless | is_veteran | former_foster_youth
+        )
         return where(
             hr1_in_effect,
             post_hr1_conditions,