MaxGhenis · Oct 5, 2026 · Oct 3, 2026 · Oct 3, 2026 · Oct 3, 2026 · Oct 4, 2026
diff --git a/changelog.d/dead-urls-south.fixed.md b/changelog.d/dead-urls-south.fixed.md
@@ -0,0 +1 @@
+Replace dead Louisiana, Mississippi, Alabama, Texas and Georgia reference URLs with live successors or pinned Wayback captures, and guard against their return.
diff --git a/policyengine_us/parameters/gov/hhs/tanf/non_cash/tx_additional_vehicle_exemption.yaml b/policyengine_us/parameters/gov/hhs/tanf/non_cash/tx_additional_vehicle_exemption.yaml
@@ -12,4 +12,4 @@ metadata:
     - title: 88(R) HB 1287 - Enrolled version
       href: https://capitol.texas.gov/tlodocs/88R/billtext/html/HB01287F.htm
     - title: Texas Works Handbook 24-3, A-1210 General Policy
-      href: https://www.hhs.texas.gov/sites/default/files/documents/twh_24-3.pdf
+      href: https://fhb.hhs.texas.gov/handbooks/texas-works-handbook/a-1210-general-policy
diff --git a/policyengine_us/parameters/gov/hhs/tanf/non_cash/tx_vehicle_exemption.yaml b/policyengine_us/parameters/gov/hhs/tanf/non_cash/tx_vehicle_exemption.yaml
@@ -12,7 +12,7 @@ metadata:
     - title: 88(R) HB 1287 - Enrolled version
       href: https://capitol.texas.gov/tlodocs/88R/billtext/html/HB01287F.htm
     - title: Texas Works Handbook 24-3, A-1210 General Policy
-      href: https://www.hhs.texas.gov/sites/default/files/documents/twh_24-3.pdf
+      href: https://fhb.hhs.texas.gov/handbooks/texas-works-handbook/a-1210-general-policy
     - title: USDA Broad-based Categorical Eligibility
       href: https://www.fns.usda.gov/snap/broad-based-categorical-eligibility
     - title: USDA ERS SNAP Policy Database (bbce_asset/bbce_a_amt columns, Jan 1996 - Dec 2020)

diff --git a/policyengine_us/parameters/gov/hud/payment_standards/README.md b/policyengine_us/parameters/gov/hud/payment_standards/README.md
@@ -69,7 +69,7 @@ standards with a 2026 effective date.
 ## Source
 
 - TDHCA Section 8 Housing Choice Voucher program:
-  <https://www.tdhca.texas.gov/section-8-housing-choice-voucher-program>
+  <https://www.tdhca.texas.gov/programs/housing-choice-voucher-section8-housing>
 - TDHCA Section 8 resources (payment-standard PDFs by year):
   <https://www.tdhca.texas.gov/section-8-resources>
 - "2025-Payment Standard-HCV" schedule (TDHCA, published 2025-01-24):

diff --git a/policyengine_us/parameters/gov/states/al/hhs/chip/enrollment_fee/per_child.yaml b/policyengine_us/parameters/gov/states/al/hhs/chip/enrollment_fee/per_child.yaml
@@ -9,7 +9,7 @@ metadata:
     - title: Alabama ALL Kids Premiums and Copays
       href: https://www.alabamapublichealth.gov/allkids/premiums-and-copays.html
     - title: Alabama ALL Kids Income Guidelines
-      href: https://www.alabamapublichealth.gov/allkids/assets/allkidsincomeguidelines.pdf
+      href: https://www.alabamapublichealth.gov/allkids/income.html
 brackets:
   - threshold:
       2021-01-01: -.inf

diff --git a/policyengine_us/parameters/gov/states/al/tax/income/agi/gross_income_sources.yaml b/policyengine_us/parameters/gov/states/al/tax/income/agi/gross_income_sources.yaml
@@ -28,9 +28,9 @@ metadata:
     - title: The Code of Alabama 1975 Section 40-18-14 (a)
       href: https://law.justia.com/codes/alabama/title-40/chapter-18/article-1/section-40-18-14/
     - title: 2021 Alabama Department of Revenue Form 40
-      href: https://www.revenue.alabama.gov/forms/2021-alabama-individual-income-tax-return-2/
-    - title: 2022 Alabama Department of Revenue Form 40
-      href: https://www.revenue.alabama.gov/wp-content/uploads/2023/01/22f40blk.pdf#page=2
+      href: https://www.revenue.alabama.gov/forms/2021-alabama-individual-income-tax-return-residents-part-year-residents-2/
+    - title: 2022 Alabama Form 40 Booklet, Page 2, Part I (Other Income)
+      href: https://www.revenue.alabama.gov/wp-content/uploads/2023/01/22f40bk.pdf#page=12
     - title: 2023 Alabama Department of Revenue Form 40
       href: https://www.taxformfinder.org/forms/2023/2023-alabama-form-40.pdf#page=2
     - title: 2024 Alabama Income Tax Instructions

diff --git a/policyengine_us/parameters/gov/states/ga/tax/income/credits/low_income/amount.yaml b/policyengine_us/parameters/gov/states/ga/tax/income/credits/low_income/amount.yaml
@@ -8,7 +8,7 @@ metadata:
     - title: 2023 Form 500 Instructions
       href: https://dor.georgia.gov/document/document/2023-it-511-individual-income-tax-booklet/download#page=26
     - title: 2022 Form 500 Instructions
-      href: https://houpl.org/wp-content/uploads/2023/01/2022-IT-511_Individual_Income_Tax_-Booklet-compressed.pdf#page=12
+      href: https://dor.georgia.gov/document/document/2022-it-511-individual-income-tax-booklet/download#page=13
     - title: 2021 Form 500 Instructions
       href: https://www.zillionforms.com/2021/I2122607361.PDF#page=21
     - title: Official Code of Georgia Annotated | Chapter 7 Income Taxes | O.C.G.A. § § 48-7A-3 (b)

diff --git a/...us/parameters/gov/states/ga/tax/income/credits/low_income/supplement_age_eligibility.yaml b/...us/parameters/gov/states/ga/tax/income/credits/low_income/supplement_age_eligibility.yaml
@@ -8,8 +8,8 @@ metadata:
     - title: 2023 Form 500 Instructions
       href: https://dor.georgia.gov/document/document/2023-it-511-individual-income-tax-booklet/download#page=13
     - title: 2022 Form 500 Instructions
-      href: https://houpl.org/wp-content/uploads/2023/01/2022-IT-511_Individual_Income_Tax_-Booklet-compressed.pdf#page=12
+      href: https://dor.georgia.gov/document/document/2022-it-511-individual-income-tax-booklet/download#page=13
     - title: 2021 Form 500 Instructions
-      href: https://houpl.org/wp-content/uploads/2022/01/2021_IT-511_Individual_Income_Tax_Booklet-12.29.21-Web-Version.pdf#page=13
+      href: https://dor.georgia.gov/document/booklet/2021-it-511-individual-income-tax-booklet/download#page=13
     - title: Official Code of Georgia Annotated | Chapter 7 Income Taxes | O.C.G.A. § § 48-7A-3 (b)
       href: https://advance.lexis.com/documentpage/?pdmfid=1000516&crid=0d6fd3c6-6e65-4928-9679-0b33bed98769&config=00JAA1MDBlYzczZi1lYjFlLTQxMTgtYWE3OS02YTgyOGM2NWJlMDYKAFBvZENhdGFsb2feed0oM9qoQOMCSJFX5qkd&pddocfullpath=%2Fshared%2Fdocument%2Fstatutes-legislation%2Furn%3AcontentItem%3A6348-G0H1-DYB7-W3SK-00008-00&pdcontentcomponentid=234186&pdteaserkey=sr0&pditab=allpods&ecomp=7s65kkk&earg=sr0&prid=8be67d32-0de2-4977-a057-d9d01bc94c88
diff --git a/policyengine_us/parameters/gov/states/ga/tax/income/exemptions/dependent.yaml b/policyengine_us/parameters/gov/states/ga/tax/income/exemptions/dependent.yaml
@@ -20,9 +20,9 @@ metadata:
   - title: 2023 Form 500 Instructions
     href: https://dor.georgia.gov/document/document/2023-it-511-individual-income-tax-booklet/download#page=13
   - title: 2022 Form 500 Instructions
-    href: https://houpl.org/wp-content/uploads/2023/01/2022-IT-511_Individual_Income_Tax_-Booklet-compressed.pdf#page=12
+    href: https://dor.georgia.gov/document/document/2022-it-511-individual-income-tax-booklet/download#page=13
   - title: 2021 Form 500 Instructions
-    href: https://houpl.org/wp-content/uploads/2022/01/2021_IT-511_Individual_Income_Tax_Booklet-12.29.21-Web-Version.pdf#page=13
+    href: https://dor.georgia.gov/document/booklet/2021-it-511-individual-income-tax-booklet/download#page=13
   - title: Official Code of Georgia Annotated | Chapter 7 Income Taxes | O.C.G.A. § 48-7-26 (b)(4)
     href: https://law.justia.com/codes/georgia/2022/title-48/chapter-7/article-2/section-48-7-26-d-1/
   - title: Georgia General Assembly, House Bill 1021 (AS PASSED HOUSE AND SENATE), Section 1

diff --git a/policyengine_us/parameters/gov/states/ga/tax/income/exemptions/personal/amount.yaml b/policyengine_us/parameters/gov/states/ga/tax/income/exemptions/personal/amount.yaml
@@ -10,9 +10,9 @@ metadata:
   - title: 2023 Form 500 Instructions
     href: https://dor.georgia.gov/document/document/2023-it-511-individual-income-tax-booklet/download#page=13
   - title: 2022 Form 500 Instructions
-    href: https://houpl.org/wp-content/uploads/2023/01/2022-IT-511_Individual_Income_Tax_-Booklet-compressed.pdf#page=12
+    href: https://dor.georgia.gov/document/document/2022-it-511-individual-income-tax-booklet/download#page=13
   - title: 2021 Form 500 Instructions
-    href: https://houpl.org/wp-content/uploads/2022/01/2021_IT-511_Individual_Income_Tax_Booklet-12.29.21-Web-Version.pdf#page=13
+    href: https://dor.georgia.gov/document/booklet/2021-it-511-individual-income-tax-booklet/download#page=13
   # As of 2024, the personal exemption statute only mentions the dependent exemption.
   - title: Official Code of Georgia Annotated | Chapter 7 Income Taxes | O.C.G.A. § 48-7-26
     href: https://law.justia.com/codes/georgia/2022/title-48/chapter-7/article-2/section-48-7-26/

diff --git a/policyengine_us/parameters/gov/states/la/dcfs/fitap/flat_grant/amount.yaml b/policyengine_us/parameters/gov/states/la/dcfs/fitap/flat_grant/amount.yaml
@@ -12,7 +12,7 @@ metadata:
   reference:
     # 2000-07-01 values (unchanged until 2022):
     - title: Louisiana DCFS 2014 TANF State Plan Renewal - Appendix B-911-2
-      href: https://www.dcfs.louisiana.gov/assets/docs/searchable/EconomicStability/TANF/2014TANFRenewal.pdf#page=16
+      href: https://web.archive.org/web/20161201201738/https://www.dcfs.louisiana.gov/assets/docs/searchable/EconomicStability/TANF/2014TANFRenewal.pdf#page=16
     # 2022-01-01 values (doubled from 2000 amounts):
     - title: Louisiana Administrative Code Title 67, Part III, Section 1229(D)
       href: https://www.law.cornell.edu/regulations/louisiana/La-Admin-Code-tit-67-SS-III-1229

diff --git a/policyengine_us/parameters/gov/states/la/dcfs/fitap/flat_grant/excess_adjustment.yaml b/policyengine_us/parameters/gov/states/la/dcfs/fitap/flat_grant/excess_adjustment.yaml
@@ -11,7 +11,7 @@ metadata:
   reference:
     # 2000-07-01 values:
     - title: Louisiana DCFS 2014 TANF State Plan Renewal - Appendix B-911-2 Note 2
-      href: https://www.dcfs.louisiana.gov/assets/docs/searchable/EconomicStability/TANF/2014TANFRenewal.pdf#page=16
+      href: https://web.archive.org/web/20161201201738/https://www.dcfs.louisiana.gov/assets/docs/searchable/EconomicStability/TANF/2014TANFRenewal.pdf#page=16
     # 2022-01-01 values:
     - title: Louisiana Administrative Code Title 67, Part III, Section 1229(D) Note 1
       href: https://www.law.cornell.edu/regulations/louisiana/La-Admin-Code-tit-67-SS-III-1229
diff --git a/policyengine_us/parameters/gov/states/la/dcfs/fitap/flat_grant/max_table_size.yaml b/policyengine_us/parameters/gov/states/la/dcfs/fitap/flat_grant/max_table_size.yaml
@@ -10,7 +10,7 @@ metadata:
   reference:
     # 2000-07-01 values:
     - title: Louisiana DCFS 2014 TANF State Plan Renewal - Appendix B-911-2
-      href: https://www.dcfs.louisiana.gov/assets/docs/searchable/EconomicStability/TANF/2014TANFRenewal.pdf#page=16
+      href: https://web.archive.org/web/20161201201738/https://www.dcfs.louisiana.gov/assets/docs/searchable/EconomicStability/TANF/2014TANFRenewal.pdf#page=16
     # 2022-01-01 values:
     - title: Louisiana Administrative Code Title 67, Part III, Section 1229(D)
       href: https://www.law.cornell.edu/regulations/louisiana/La-Admin-Code-tit-67-SS-III-1229
diff --git a/policyengine_us/parameters/gov/states/la/tax/income/credits/cdcc/non_refundable/match.yaml b/policyengine_us/parameters/gov/states/la/tax/income/credits/cdcc/non_refundable/match.yaml
@@ -33,6 +33,6 @@ metadata:
     - title: 2024 Louisiana Resident Income Tax Return Instructions, Nonrefundable Child Care Credit Worksheet
       href: https://dam.ldr.la.gov/taxforms/IT540i%20WEB%20(2024)D18%20INSTRUCTIONS.pdf#page=30
     - title: 2023 Louisiana Resident Income Tax Return
-      href: https://revenue.louisiana.gov/TaxForms/IT540WEB(2023)%20F.pdf#page=16
+      href: https://dam.ldr.la.gov/taxforms/IT540WEB(2023)%20F.pdf#page=16
     - title: 2022 Louisiana Resident Income Tax Return
-      href: https://revenue.louisiana.gov/TaxForms/IT540WEB(2022)%20F%20D2.pdf#page=16
+      href: https://dam.ldr.la.gov/taxforms/IT540WEB(2022)%20F%20D2.pdf#page=16
diff --git a/...us/parameters/gov/states/la/tax/income/credits/cdcc/non_refundable/upper_bracket_cap.yaml b/...us/parameters/gov/states/la/tax/income/credits/cdcc/non_refundable/upper_bracket_cap.yaml
@@ -13,8 +13,8 @@ metadata:
     - title: 2024 Louisiana Resident Income Tax Return, 2024 Louisiana Nonrefundable Child Care Credit Worksheet
       href: https://dam.ldr.la.gov/taxforms/IT540i%20WEB%20(2024)D18%20INSTRUCTIONS.pdf#page=30
     - title: 2023 Louisiana Resident Income Tax Return, 2A
-      href: https://revenue.louisiana.gov/TaxForms/IT540WEB(2023)%20F.pdf#page=16
+      href: https://dam.ldr.la.gov/taxforms/IT540WEB(2023)%20F.pdf#page=16
     - title: 2022 Louisiana Resident Income Tax Return, 2A
-      href: https://revenue.louisiana.gov/TaxForms/IT540WEB(2022)%20F%20D2.pdf#page=16
+      href: https://dam.ldr.la.gov/taxforms/IT540WEB(2022)%20F%20D2.pdf#page=16
     - title: 2021 Louisiana Resident Income Tax Return, 2A
-      href: https://revenue.louisiana.gov/TaxForms/IT540WEB(2021)%20F.pdf#page=16
+      href: https://dam.ldr.la.gov/taxforms/IT-540-WEB-2021-F.pdf#page=16
diff --git a/policyengine_us/parameters/gov/states/la/tax/income/credits/cdcc/refundable/match.yaml b/policyengine_us/parameters/gov/states/la/tax/income/credits/cdcc/refundable/match.yaml
@@ -25,6 +25,6 @@ metadata:
     - title: 2024 Louisiana Resident Income Tax Return Instructions, Refundable Child Care Credit Worksheet
       href: https://dam.ldr.la.gov/taxforms/IT540i%20WEB%20(2024)D18%20INSTRUCTIONS.pdf#page=28
     - title: 2023 Louisiana Resident Income Tax Return
-      href: https://revenue.louisiana.gov/TaxForms/IT540WEB(2023)%20F.pdf#page=14
+      href: https://dam.ldr.la.gov/taxforms/IT540WEB(2023)%20F.pdf#page=14
     - title: 2022 Louisiana Resident Income Tax Return
-      href: https://revenue.louisiana.gov/TaxForms/IT540WEB(2022)%20F.pdf#page=14
+      href: https://dam.ldr.la.gov/taxforms/IT-540-WEB-2022-F.pdf#page=14
diff --git a/policyengine_us/parameters/gov/states/la/tax/income/credits/eitc/match.yaml b/policyengine_us/parameters/gov/states/la/tax/income/credits/eitc/match.yaml
@@ -13,6 +13,6 @@ metadata:
     - title: 2024 Louisiana Resident Income Tax Return Instructions, Earned Income Credit Worksheet
       href: https://dam.ldr.la.gov/taxforms/IT540i%20WEB%20(2024)D18%20INSTRUCTIONS.pdf#page=29
     - title: 2023 Louisiana Resident Income Tax Return, Line 15
-      href: https://revenue.louisiana.gov/TaxForms/IT540WEB(2023)%20F.pdf#page=2
+      href: https://dam.ldr.la.gov/taxforms/IT540WEB(2023)%20F.pdf#page=2
     - title: 2022 Louisiana Resident Income Tax Return, Line 15
-      href: https://revenue.louisiana.gov/TaxForms/IT540iWEB(2022)D1.pdf#page=2
+      href: https://dam.ldr.la.gov/taxforms/IT540iWEB(2022)D1.pdf#page=2
diff --git a/...engine_us/parameters/gov/states/la/tax/income/credits/school_readiness/age_threshold.yaml b/...engine_us/parameters/gov/states/la/tax/income/credits/school_readiness/age_threshold.yaml
@@ -13,8 +13,8 @@ metadata:
  - title: 2024 Louisiana Resident Income Tax Return, 2024 Louisiana Refundable School Readiness Credit Worksheet
    href: https://dam.ldr.la.gov/taxforms/IT540i%20WEB%20(2024)D18%20INSTRUCTIONS.pdf#page=29
  - title: 2023 Form IT-540-WEB
-   href: https://revenue.louisiana.gov/TaxForms/IT540WEB(2023)%20F.pdf#page=15
+   href: https://dam.ldr.la.gov/taxforms/IT540WEB(2023)%20F.pdf#page=15
  - title: 2022 Form IT-540-WEB
-   href: https://revenue.louisiana.gov/TaxForms/IT540WEB(2022)%20F%20D2.pdf#page=15
+   href: https://dam.ldr.la.gov/taxforms/IT540WEB(2022)%20F%20D2.pdf#page=15
  - title: 2021 Form IT-540-WEB
-   href: https://revenue.louisiana.gov/TaxForms/IT540WEB(2021)%20F.pdf#page=15
+   href: https://dam.ldr.la.gov/taxforms/IT-540-WEB-2021-F.pdf#page=15
diff --git a/policyengine_us/parameters/gov/states/la/tax/income/credits/school_readiness/rate.yaml b/policyengine_us/parameters/gov/states/la/tax/income/credits/school_readiness/rate.yaml
@@ -35,8 +35,8 @@ metadata:
  - title: 2024 Louisiana Resident Income Tax Return, 2024 Louisiana Refundable School Readiness Credit Worksheet
    href: https://dam.ldr.la.gov/taxforms/IT540i%20WEB%20(2024)D18%20INSTRUCTIONS.pdf#page=29
  - title: 2023 Form IT-540-WEB
-   href: https://revenue.louisiana.gov/TaxForms/IT540WEB(2023)%20F.pdf#page=15
+   href: https://dam.ldr.la.gov/taxforms/IT540WEB(2023)%20F.pdf#page=15
  - title: 2022 Form IT-540-WEB
-   href: https://revenue.louisiana.gov/TaxForms/IT540WEB(2022)%20F%20D2.pdf#page=15
+   href: https://dam.ldr.la.gov/taxforms/IT540WEB(2022)%20F%20D2.pdf#page=15
  - title: 2021 Form IT-540-WEB
-   href: https://revenue.louisiana.gov/TaxForms/IT540WEB(2021)%20F.pdf#page=15
+   href: https://dam.ldr.la.gov/taxforms/IT-540-WEB-2021-F.pdf#page=15
diff --git a/policyengine_us/parameters/gov/states/la/tax/income/deductions/federal_tax/availability.yaml b/policyengine_us/parameters/gov/states/la/tax/income/deductions/federal_tax/availability.yaml
@@ -8,10 +8,10 @@ metadata:
   label: Louisiana federal tax deduction availability
   reference:
     - title: 2021 Louisiana IT540i Instructions
-      href: https://revenue.louisiana.gov/TaxForms/IT540i(2021)%20Instructions.pdf#page=3
+      href: https://dam.ldr.la.gov/taxforms/IT540i(2021)%20Instructions.pdf#page=3
     - title: 2022 Louisiana IT540i Instructions
-      href: https://revenue.louisiana.gov/TaxForms/IT540iWEB(2022)D1.pdf#page=2
+      href: https://dam.ldr.la.gov/taxforms/IT540iWEB(2022)D1.pdf#page=2
     - title: 2023 Louisiana IT540i Instructions
-      href: https://revenue.louisiana.gov/TaxForms/IT540i%20WEB(2023)%20INSTRUCTIONS.pdf#page=2
+      href: https://dam.ldr.la.gov/taxforms/IT540i%20WEB(2023)%20INSTRUCTIONS.pdf#page=2
     - title: Title 47 - Revenue and Taxation §298. Repealed by Acts 2021, No. 39
       href: https://law.justia.com/codes/louisiana/2021/revised-statutes/title-47/rs-298/
diff --git a/policyengine_us/parameters/gov/states/la/tax/income/deductions/itemized/excess_fraction.yaml b/policyengine_us/parameters/gov/states/la/tax/income/deductions/itemized/excess_fraction.yaml
@@ -18,6 +18,6 @@ metadata:
     - title: 2024 Louisiana Resident Income Tax Return Instructions
       href: https://dam.ldr.la.gov/taxforms/IT540i%20WEB%20(2024)D18%20INSTRUCTIONS.pdf#page=33
     - title: 2023 Louisiana Resident Income Tax Return Instructions
-      href: https://revenue.louisiana.gov/TaxForms/IT540i%20WEB(2023)%20INSTRUCTIONS.pdf#page=3
+      href: https://dam.ldr.la.gov/taxforms/IT540i%20WEB(2023)%20INSTRUCTIONS.pdf#page=3
     - title: 2022 Louisiana Resident Income Tax Return Instructions
-      href: https://revenue.louisiana.gov/TaxForms/IT540iWEB(2022)D1.pdf#page=2
+      href: https://dam.ldr.la.gov/taxforms/IT540iWEB(2022)D1.pdf#page=2
diff --git a/.../parameters/gov/states/la/tax/income/deductions/itemized/relevant_federal_deductions.yaml b/.../parameters/gov/states/la/tax/income/deductions/itemized/relevant_federal_deductions.yaml
@@ -17,6 +17,6 @@ metadata:
     - title: 2024 Louisiana Resident Income Tax Return Instructions
       href: https://dam.ldr.la.gov/taxforms/IT540i%20WEB%20(2024)D18%20INSTRUCTIONS.pdf#page=33
     - title: 2023 Louisiana Resident Income Tax Return Instructions
-      href: https://revenue.louisiana.gov/TaxForms/IT540i%20WEB(2023)%20INSTRUCTIONS.pdf#page=3
+      href: https://dam.ldr.la.gov/taxforms/IT540i%20WEB(2023)%20INSTRUCTIONS.pdf#page=3
     - title: 2022 Louisiana Resident Income Tax Return Instructions
-      href: https://revenue.louisiana.gov/TaxForms/IT540iWEB(2022)D1.pdf#page=2
+      href: https://dam.ldr.la.gov/taxforms/IT540iWEB(2022)D1.pdf#page=2
diff --git a/policyengine_us/parameters/gov/states/la/tax/income/exempt_income/disability/cap.yaml b/policyengine_us/parameters/gov/states/la/tax/income/exempt_income/disability/cap.yaml
@@ -11,9 +11,9 @@ metadata:
     - title: 2024 Louisiana Resident Income Tax Return
       href: https://dam.ldr.la.gov/taxforms/IT540i%20WEB%20(2024)D18%20INSTRUCTIONS.pdf#page=10
     - title: 2023 Louisiana Resident Income Tax Return Instructions, Exemption Code 49E
-      href: https://revenue.louisiana.gov/TaxForms/IT540i%20WEB(2023)%20INSTRUCTIONS.pdf#page=9
+      href: https://dam.ldr.la.gov/taxforms/IT540i%20WEB(2023)%20INSTRUCTIONS.pdf#page=9
     - title: 2022 Louisiana Resident Income Tax Return Instructions, Exemption Code 49E
-      href: https://revenue.louisiana.gov/TaxForms/IT540iWEB(2022)D1.pdf#page=8
+      href: https://dam.ldr.la.gov/taxforms/IT540iWEB(2022)D1.pdf#page=8
   unit: currency-USD
   period: year
   label: Louisiana disability income exemption cap
diff --git a/.../parameters/gov/states/la/tax/income/exempt_income/military_pay_exclusion/max_amount.yaml b/.../parameters/gov/states/la/tax/income/exempt_income/military_pay_exclusion/max_amount.yaml
@@ -15,6 +15,6 @@ metadata:
  - title: 2024 Louisiana Resident Income Tax Return Instructions, Schedule E, Code 10E
    href: https://dam.ldr.la.gov/taxforms/IT540i%20WEB%20(2024)D18%20INSTRUCTIONS.pdf#page=8
  - title: 2023 Louisiana Resident Income Tax Return Instructions, Schedule E, Code 10E
-   href: https://revenue.louisiana.gov/TaxForms/IT540i%20WEB(2023)%20INSTRUCTIONS.pdf#page=8
+   href: https://dam.ldr.la.gov/taxforms/IT540i%20WEB(2023)%20INSTRUCTIONS.pdf#page=8
  - title: 2022 Louisiana Resident Income Tax Return Instructions, Schedule E, Code 10E
-   href: https://revenue.louisiana.gov/TaxForms/IT540iWEB(2022)D1.pdf#page=7
+   href: https://dam.ldr.la.gov/taxforms/IT540iWEB(2022)D1.pdf#page=7
diff --git a/policyengine_us/parameters/gov/states/la/tax/income/exempt_income/reduction/in_effect.yaml b/policyengine_us/parameters/gov/states/la/tax/income/exempt_income/reduction/in_effect.yaml
@@ -9,8 +9,8 @@ metadata:
   label: Louisiana exempt adjusted gross income reduction in effect
   reference:
     - title: 2021 Louisiana Individual Income Tax Return IT-540 Instructions
-      href: https://revenue.louisiana.gov/TaxForms/IT540i(2021)%20Instructions.pdf#page=9
+      href: https://dam.ldr.la.gov/taxforms/IT540i(2021)%20Instructions.pdf#page=9
     - title: 2022 Louisiana Individual Income Tax Return IT-540 Instructions
-      href: https://revenue.louisiana.gov/TaxForms/IT540iWEB(2022)D1.pdf#page=9
+      href: https://dam.ldr.la.gov/taxforms/IT540iWEB(2022)D1.pdf#page=9
     - title: 2023 Louisiana Individual Income Tax Return IT-540 Instructions
-      href: https://revenue.louisiana.gov/TaxForms/IT540i%20WEB(2023)%20INSTRUCTIONS.pdf#page=10
+      href: https://dam.ldr.la.gov/taxforms/IT540i%20WEB(2023)%20INSTRUCTIONS.pdf#page=10
diff --git a/policyengine_us/parameters/gov/states/la/tax/income/exempt_income/reduction/rate.yaml b/policyengine_us/parameters/gov/states/la/tax/income/exempt_income/reduction/rate.yaml
@@ -17,11 +17,11 @@ brackets:
 metadata:
   reference:
     - title: 2021 Louisiana Individual Income Tax Return IT-540 Instructions
-      href: https://revenue.louisiana.gov/TaxForms/IT540i(2021)%20Instructions.pdf#page=9
+      href: https://dam.ldr.la.gov/taxforms/IT540i(2021)%20Instructions.pdf#page=9
     - title: 2022 Louisiana Individual Income Tax Return IT-540 Instructions
-      href: https://revenue.louisiana.gov/TaxForms/IT540iWEB(2022)D1.pdf#page=9
+      href: https://dam.ldr.la.gov/taxforms/IT540iWEB(2022)D1.pdf#page=9
     - title: 2023 Louisiana Individual Income Tax Return IT-540 Instructions
-      href: https://revenue.louisiana.gov/TaxForms/IT540i%20WEB(2023)%20INSTRUCTIONS.pdf#page=10
+      href: https://dam.ldr.la.gov/taxforms/IT540i%20WEB(2023)%20INSTRUCTIONS.pdf#page=10
   threshold_unit: currency-USD
   rate_unit: /1
   type: marginal_rate

diff --git a/policyengine_us/parameters/gov/states/la/tax/income/exempt_income/retirement/cap.yaml b/policyengine_us/parameters/gov/states/la/tax/income/exempt_income/retirement/cap.yaml
@@ -20,9 +20,9 @@ metadata:
     - title: 2024 Louisiana Resident Income Tax Return
       href: https://dam.ldr.la.gov/taxforms/IT540i%20WEB%20(2024)D18%20INSTRUCTIONS.pdf#page=7
     - title: 2023 Louisiana Resident Income Tax Return Instructions, Exemption Code 06E
-      href: https://revenue.louisiana.gov/TaxForms/IT540iWEB(2023)D1.pdf#page=7
+      href: https://dam.ldr.la.gov/taxforms/IT540i%20WEB(2023)%20INSTRUCTIONS.pdf#page=7
     - title: 2022 Louisiana Resident Income Tax Return Instructions, Exemption Code 06E
-      href: https://revenue.louisiana.gov/TaxForms/IT540iWEB(2022)D1.pdf#page=6
+      href: https://dam.ldr.la.gov/taxforms/IT540iWEB(2022)D1.pdf#page=6
   threshold_unit: year
   amount_unit: currency-USD  
   type: single_amount
Original file line number	Diff line number	Diff line change
		@@ -0,0 +1 @@
		Replace dead Louisiana, Mississippi, Alabama, Texas and Georgia reference URLs with live successors or pinned Wayback captures, and guard against their return.