PolicyEngine · PavelMakarchuk · Mar 25, 2026 · Feb 23, 2026 · Feb 24, 2026 · Feb 24, 2026
diff --git a/changelog.d/hua7450-issue7465.changed.md b/changelog.d/hua7450-issue7465.changed.md
@@ -0,0 +1 @@
+Backdate Nebraska ADC parameters.
diff --git a/policyengine_us/parameters/gov/states/ne/dhhs/adc/benefit/payment_standard_rate.yaml b/policyengine_us/parameters/gov/states/ne/dhhs/adc/benefit/payment_standard_rate.yaml
@@ -1,7 +1,7 @@
 description: Nebraska provides this share of the standard of need as the payment standard under the Aid to Dependent Children program.
 
 values:
-  2015-07-01: 0.55
+  2015-09-01: 0.55
 
 metadata:
   unit: /1

diff --git a/...gine_us/parameters/gov/states/ne/dhhs/adc/benefit/standard_of_need/additional_person.yaml b/...gine_us/parameters/gov/states/ne/dhhs/adc/benefit/standard_of_need/additional_person.yaml
@@ -1,7 +1,11 @@
 description: Nebraska adds this amount to the standard of need for each person beyond unit size 10 under the Aid to Dependent Children program.
 
 values:
+  2015-07-01: 126
+  2017-07-01: 130
+  2019-07-01: 135
   2021-07-01: 140
+  2023-07-01: 160
   2025-07-01: 170
 
 metadata:
@@ -11,7 +15,11 @@ metadata:
   reference:
     - title: Neb. Rev. Stat. 43-513(1)
       href: https://nebraskalegislature.gov/laws/statutes.php?statute=43-513
+    - title: ACF-202 TANF Caseload Reduction Report (2017, 2019 SON values)
+      href: https://dhhs.ne.gov/Documents/Nebraska-State-TANF-Plan-2025.pdf#page=3
     - title: 468-000-209 (2021)
       href: https://dhhs.ne.gov/Documents/468-000-209.pdf
+    - title: Nebraska Legislature 2024 TANF Report (2023)
+      href: https://nebraskalegislature.gov/pdf/reports/fiscal/2024_tanf_report.pdf#page=4
     - title: Title 468 NAC Chapter 3 (2025)
       href: https://dhhs.ne.gov/Guidance%20Docs/Title%20468%20-%20Aid%20to%20Dependent%20Children.pdf#page=9
diff --git a/policyengine_us/parameters/gov/states/ne/dhhs/adc/benefit/standard_of_need/amount.yaml b/policyengine_us/parameters/gov/states/ne/dhhs/adc/benefit/standard_of_need/amount.yaml
@@ -6,43 +6,87 @@ metadata:
   breakdown:
     - range(1, 11)
   breakdown_labels:
-    - Household size
+    - Assistance unit size
   label: Nebraska ADC standard of need
   reference:
     - title: Neb. Rev. Stat. 43-513(1)
       href: https://nebraskalegislature.gov/laws/statutes.php?statute=43-513
+    - title: ACF-202 TANF Caseload Reduction Report (2017, 2019 SON values)
+      href: https://dhhs.ne.gov/Documents/Nebraska-State-TANF-Plan-2025.pdf#page=3
     - title: 468-000-209 (2021)
       href: https://dhhs.ne.gov/Documents/468-000-209.pdf
+    - title: Nebraska Legislature 2024 TANF Report (2023)
+      href: https://nebraskalegislature.gov/pdf/reports/fiscal/2024_tanf_report.pdf#page=4
     - title: Title 468 NAC Chapter 3 (2025)
       href: https://dhhs.ne.gov/Guidance%20Docs/Title%20468%20-%20Aid%20to%20Dependent%20Children.pdf#page=9
 
 1:
+  2015-07-01: 541
+  2017-07-01: 556
+  2019-07-01: 579
   2021-07-01: 601
+  2023-07-01: 683
   2025-07-01: 727
 2:
+  2015-07-01: 667
+  2017-07-01: 686
+  2019-07-01: 714
   2021-07-01: 741
+  2023-07-01: 843
   2025-07-01: 897
 3:
+  2015-07-01: 793
+  2017-07-01: 816
+  2019-07-01: 849
   2021-07-01: 881
+  2023-07-01: 1_003
   2025-07-01: 1_067
 4:
+  2015-07-01: 919
+  2017-07-01: 946
+  2019-07-01: 984
   2021-07-01: 1_021
+  2023-07-01: 1_163
   2025-07-01: 1_237
 5:
+  2015-07-01: 1_045
+  2017-07-01: 1_076
+  2019-07-01: 1_119
   2021-07-01: 1_161
+  2023-07-01: 1_323
   2025-07-01: 1_407
 6:
+  2015-07-01: 1_171
+  2017-07-01: 1_206
+  2019-07-01: 1_254
   2021-07-01: 1_301
+  2023-07-01: 1_483
   2025-07-01: 1_577
 7:
+  2015-07-01: 1_297
+  2017-07-01: 1_336
+  2019-07-01: 1_389
   2021-07-01: 1_441
+  2023-07-01: 1_643
   2025-07-01: 1_747
 8:
+  2015-07-01: 1_423
+  2017-07-01: 1_466
+  2019-07-01: 1_524
   2021-07-01: 1_581
+  2023-07-01: 1_803
   2025-07-01: 1_917
 9:
+  2015-07-01: 1_549
+  2017-07-01: 1_596
+  2019-07-01: 1_659
   2021-07-01: 1_721
+  2023-07-01: 1_963
   2025-07-01: 2_087
 10:
+  2015-07-01: 1_675
+  2017-07-01: 1_726
+  2019-07-01: 1_794
   2021-07-01: 1_861
+  2023-07-01: 2_123
   2025-07-01: 2_257
diff --git a/...cyengine_us/parameters/gov/states/ne/dhhs/adc/income/earned_income_disregard/initial.yaml b/...cyengine_us/parameters/gov/states/ne/dhhs/adc/income/earned_income_disregard/initial.yaml
@@ -1,7 +1,7 @@
 description: Nebraska excludes this share of earnings from countable income for initial applicants under the Aid to Dependent Children program.
 
 values:
-  2021-07-01: 0.2
+  2015-09-01: 0.2
 
 metadata:
   unit: /1

diff --git a/...cyengine_us/parameters/gov/states/ne/dhhs/adc/income/earned_income_disregard/ongoing.yaml b/...cyengine_us/parameters/gov/states/ne/dhhs/adc/income/earned_income_disregard/ongoing.yaml
@@ -1,7 +1,7 @@
 description: Nebraska excludes this share of earnings from countable income for ongoing recipients under the Aid to Dependent Children program.
 
 values:
-  2021-07-01: 0.5
+  2015-09-01: 0.5
 
 metadata:
   unit: /1

diff --git a/policyengine_us/parameters/gov/states/ne/dhhs/adc/max_unit_size.yaml b/policyengine_us/parameters/gov/states/ne/dhhs/adc/max_unit_size.yaml
@@ -1,7 +1,7 @@
 description: Nebraska sets this as the maximum unit size for benefit calculations under the Aid to Dependent Children program.
 
 values:
-  2021-07-01: 10
+  2015-07-01: 10
 
 metadata:
   unit: /1

diff --git a/policyengine_us/parameters/gov/states/ne/dhhs/adc/resources/limit.yaml b/policyengine_us/parameters/gov/states/ne/dhhs/adc/resources/limit.yaml
@@ -12,10 +12,10 @@ metadata:
 
 brackets:
   - threshold:
-      2021-07-01: 1
+      2015-07-01: 1
     amount:
-      2021-07-01: 4_000
+      2015-07-01: 4_000
   - threshold:
-      2021-07-01: 2
+      2015-07-01: 2
     amount:
-      2021-07-01: 6_000
+      2015-07-01: 6_000
diff --git a/...e_us/parameters/gov/states/ut/dwf/fep/income/deductions/earned_income_disregard/rate.yaml b/...e_us/parameters/gov/states/ut/dwf/fep/income/deductions/earned_income_disregard/rate.yaml
@@ -7,8 +7,7 @@ metadata:
   reference:
     - title: Utah Admin. Code R986-200-239(2)(b)
       href: https://www.law.cornell.edu/regulations/utah/Utah-Admin-Code-R986-200-239
-    - title: Welfare Rules Databook Table L4 - Earned Income Disregards (1996-2023)
-      href: https://wrd.urban.org/policy-tables
+
 
 values:
   1996-10-01: 0.5
diff --git a/..._us/parameters/gov/states/ut/dwf/fep/income/deductions/work_expense_allowance/amount.yaml b/..._us/parameters/gov/states/ut/dwf/fep/income/deductions/work_expense_allowance/amount.yaml
@@ -7,8 +7,7 @@ metadata:
   reference:
     - title: Utah Admin. Code R986-200-239(2)(a)
       href: https://www.law.cornell.edu/regulations/utah/Utah-Admin-Code-R986-200-239
-    - title: Welfare Rules Databook Table L4 - Earned Income Disregards (1996-2023)
-      href: https://wrd.urban.org/policy-tables
+
 
 values:
   1996-10-01: 100
diff --git a/policyengine_us/parameters/gov/states/ut/dwf/fep/resources/limit/amount.yaml b/policyengine_us/parameters/gov/states/ut/dwf/fep/resources/limit/amount.yaml
@@ -7,8 +7,7 @@ metadata:
   reference:
     - title: Utah Admin. Code R986-200-230(5)
       href: https://www.law.cornell.edu/regulations/utah/Utah-Admin-Code-R986-200-230
-    - title: Welfare Rules Databook Table L8 - Asset Limits (1996-2023)
-      href: https://wrd.urban.org/policy-tables
+
 
 values:
   1996-10-01: 2_000