hua7450 · Nov 3, 2026 · Nov 2, 2026 · Nov 2, 2026 · Nov 3, 2026 · Nov 3, 2026
diff --git a/changelog.d/ca-ssp-state-share-parameters.changed.md b/changelog.d/ca-ssp-state-share-parameters.changed.md
@@ -0,0 +1 @@
+Store California's state supplement payment standards as state shares on top of the federal benefit rate, so the standards follow each federal cost-of-living adjustment, and date the shares and food allowances from January 2013 using the levels SSA POMS lists for each year.
diff --git a/...gov/states/ca/cdss/state_supplement/payment_standard/aged_or_disabled/amount/married.yaml b/...gov/states/ca/cdss/state_supplement/payment_standard/aged_or_disabled/amount/married.yaml
@@ -1,8 +1,8 @@
-description: California provides the following state supplement amount to two eligible aged or disabled married filers.
+description: California adds this state share to the federal couple benefit rate for married couples who both qualify as aged or disabled and live independently under the State Supplementary Payment program.
 metadata:
   unit: currency-USD
   period: month
-  label: California state supplement aged or disabled allowance married amount
+  label: California state supplement aged or disabled married state share
   reference:
     - title: California Welfare and Institutions Code Division 9, Part 3, Chapter 3, Article 5, Section 12200 (d)
       href: https://leginfo.legislature.ca.gov/faces/codes_displaySection.xhtml?lawCode=WIC&sectionNum=12200
@@ -12,7 +12,26 @@ metadata:
       href: https://cdss.ca.gov/Portals/13/SHD/ParaRegIndex/SSI%20Monthly%20Payment%20Amounts%202026.pdf
     - title: SSA POMS SI 01415.058 - Federally Administered Optional Supplementary Payment Programs for January 2026, California couple payment levels
       href: https://secure.ssa.gov/apps10/poms.nsf/lnx/0501415058#b2b
+    - title: SSA POMS SI 01415.057 - Federally Administered Optional Supplementary Payment Programs for January 2025, California couple payment levels
+      href: https://secure.ssa.gov/apps10/poms.nsf/lnx/0501415057#b2b
+    - title: SSA POMS SI 01415.056 - Federally Administered Optional Supplementary Payment Programs for January 2024, California couple payment levels
+      href: https://secure.ssa.gov/apps10/poms.nsf/lnx/0501415056#b2b
+    - title: SSA POMS SI 01415.045 - Federally Administered Optional Supplementary Payment Programs for January 2013, California couple payment levels
+      href: https://secure.ssa.gov/apps10/poms.nsf/lnx/0501415045#b2b
+    - title: SSA POMS SI 01415.049 - Federally Administered Optional Supplementary Payment Programs for January 2017, California couple payment levels
+      href: https://secure.ssa.gov/apps10/poms.nsf/lnx/0501415049#b2b
+    - title: SSA POMS SI 01415.054 - Federally Administered Optional Supplementary Payment Programs for January 2022, California couple payment levels
+      href: https://secure.ssa.gov/apps10/poms.nsf/lnx/0501415054#b2b
+    - title: SSA POMS SI 01415.055 - Federally Administered Optional Supplementary Payment Programs for January 2023, California couple payment levels
+      href: https://secure.ssa.gov/apps10/poms.nsf/lnx/0501415055#b2b
+    - title: "California Department of Social Services, Local Assistance Estimates, 2026 May Revision reference documents, SSI/SSP Payment Standards #page 26-27"
+      href: https://cdss.ca.gov/Portals/9/Additional-Resources/Fiscal-and-Financial-Information/LOcal-Assistance-Estimates/2026-27/Revisions/2026-may-revision-reference-documents.pdf#page=26
 values:
-  1991-01-01: 1_167
-  2025-01-01: 2_057.83
-  2026-01-01: 2_098.83
+  1991-01-01: 557 # $1,167 - $610
+  # Shares for 1992 through 2012 are not added yet, so the 1991 share carries forward (issue 10480).
+  2013-01-01: 396.2
+  2017-01-01: 407.14
+  2022-01-01: 504.64
+  2023-01-01: 556.62
+  # The share holds for January 2024 through 2026, and CDSS projects it for January 2027.
+  2024-01-01: 607.83
diff --git a/.../gov/states/ca/cdss/state_supplement/payment_standard/aged_or_disabled/amount/single.yaml b/.../gov/states/ca/cdss/state_supplement/payment_standard/aged_or_disabled/amount/single.yaml
@@ -1,8 +1,8 @@
-description: California provides the following state supplement amount to aged or disabled single filers.
+description: California adds this state share to the federal benefit rate for aged or disabled individuals living independently under the State Supplementary Payment program.
 metadata:
   unit: currency-USD
   period: month
-  label: California state supplement aged or disabled allowance single amount
+  label: California state supplement aged or disabled single state share
   reference:
     - title: California Welfare and Institutions Code Division 9, Part 3, Chapter 3, Article 5, Section 12200 (c)
       href: https://leginfo.legislature.ca.gov/faces/codes_displaySection.xhtml?lawCode=WIC&sectionNum=12200
@@ -12,7 +12,26 @@ metadata:
       href: https://cdss.ca.gov/Portals/13/SHD/ParaRegIndex/SSI%20Monthly%20Payment%20Amounts%202026.pdf
     - title: SSA POMS SI 01415.058 - Federally Administered Optional Supplementary Payment Programs for January 2026, California recipient payment levels
       href: https://secure.ssa.gov/apps10/poms.nsf/lnx/0501415058#b2a
+    - title: SSA POMS SI 01415.057 - Federally Administered Optional Supplementary Payment Programs for January 2025, California recipient payment levels
+      href: https://secure.ssa.gov/apps10/poms.nsf/lnx/0501415057#b2a
+    - title: SSA POMS SI 01415.056 - Federally Administered Optional Supplementary Payment Programs for January 2024, California recipient payment levels
+      href: https://secure.ssa.gov/apps10/poms.nsf/lnx/0501415056#b2a
+    - title: SSA POMS SI 01415.045 - Federally Administered Optional Supplementary Payment Programs for January 2013, California recipient payment levels
+      href: https://secure.ssa.gov/apps10/poms.nsf/lnx/0501415045#b2a
+    - title: SSA POMS SI 01415.049 - Federally Administered Optional Supplementary Payment Programs for January 2017, California recipient payment levels
+      href: https://secure.ssa.gov/apps10/poms.nsf/lnx/0501415049#b2a
+    - title: SSA POMS SI 01415.054 - Federally Administered Optional Supplementary Payment Programs for January 2022, California recipient payment levels
+      href: https://secure.ssa.gov/apps10/poms.nsf/lnx/0501415054#b2a
+    - title: SSA POMS SI 01415.055 - Federally Administered Optional Supplementary Payment Programs for January 2023, California recipient payment levels
+      href: https://secure.ssa.gov/apps10/poms.nsf/lnx/0501415055#b2a
+    - title: "California Department of Social Services, Local Assistance Estimates, 2026 May Revision reference documents, SSI/SSP Payment Standards #page 26-27"
+      href: https://cdss.ca.gov/Portals/9/Additional-Resources/Fiscal-and-Financial-Information/LOcal-Assistance-Estimates/2026-27/Revisions/2026-may-revision-reference-documents.pdf#page=26
 values:
-  1991-01-01: 630
-  2025-01-01: 1_206.94
-  2026-01-01: 1_233.94
+  1991-01-01: 223 # $630 - $407
+  # Shares for 1992 through 2012 are not added yet, so the 1991 share carries forward (issue 10480).
+  2013-01-01: 156.4
+  2017-01-01: 160.72
+  2022-01-01: 199.21
+  2023-01-01: 219.73
+  # The share holds for January 2024 through 2026, and CDSS projects it for January 2027.
+  2024-01-01: 239.94
diff --git a/...rameters/gov/states/ca/cdss/state_supplement/payment_standard/allowance/food/married.yaml b/...rameters/gov/states/ca/cdss/state_supplement/payment_standard/allowance/food/married.yaml
@@ -12,7 +12,23 @@ metadata:
       href: https://cdss.ca.gov/Portals/13/SHD/ParaRegIndex/SSI%20Monthly%20Payment%20Amounts%202026.pdf
     - title: SSA POMS SI 01415.058 - Federally Administered Optional Supplementary Payment Programs for January 2026, California couple payment levels
       href: https://secure.ssa.gov/apps10/poms.nsf/lnx/0501415058#b2b
+    - title: SSA POMS SI 01415.056 - Federally Administered Optional Supplementary Payment Programs for January 2024, California couple payment levels
+      href: https://secure.ssa.gov/apps10/poms.nsf/lnx/0501415056#b2b
+    - title: SSA POMS SI 01415.045 - Federally Administered Optional Supplementary Payment Programs for January 2013, California couple payment levels
+      href: https://secure.ssa.gov/apps10/poms.nsf/lnx/0501415045#b2b
+    - title: SSA POMS SI 01415.049 - Federally Administered Optional Supplementary Payment Programs for January 2017, California couple payment levels
+      href: https://secure.ssa.gov/apps10/poms.nsf/lnx/0501415049#b2b
+    - title: SSA POMS SI 01415.054 - Federally Administered Optional Supplementary Payment Programs for January 2022, California couple payment levels
+      href: https://secure.ssa.gov/apps10/poms.nsf/lnx/0501415054#b2b
+    - title: SSA POMS SI 01415.055 - Federally Administered Optional Supplementary Payment Programs for January 2023, California couple payment levels
+      href: https://secure.ssa.gov/apps10/poms.nsf/lnx/0501415055#b2b
 values:
   1991-01-01: 136
+  # Allowances for 1992 through 2012 are not added yet, so the 1991 allowance carries forward (issue 10480).
+  2013-01-01: 168 # $1,630.20 - $1,462.20
+  2017-01-01: 172.63 # $1,682.77 - $1,510.14
+  2022-01-01: 213.99 # $1,979.63 - $1,765.64
+  2023-01-01: 236.03 # $2,163.65 - $1,927.62
+  2024-01-01: 257.74 # $2,280.57 - $2,022.83
   2025-01-01: 257.74 # $2,315.57 - $2,057.83
   2026-01-01: 257.74 # $2,356.57 - $2,098.83
diff --git a/...arameters/gov/states/ca/cdss/state_supplement/payment_standard/allowance/food/single.yaml b/...arameters/gov/states/ca/cdss/state_supplement/payment_standard/allowance/food/single.yaml
@@ -12,7 +12,23 @@ metadata:
       href: https://cdss.ca.gov/Portals/13/SHD/ParaRegIndex/SSI%20Monthly%20Payment%20Amounts%202026.pdf
     - title: SSA POMS SI 01415.058 - Federally Administered Optional Supplementary Payment Programs for January 2026, California recipient payment levels
       href: https://secure.ssa.gov/apps10/poms.nsf/lnx/0501415058#b2a
+    - title: SSA POMS SI 01415.056 - Federally Administered Optional Supplementary Payment Programs for January 2024, California recipient payment levels
+      href: https://secure.ssa.gov/apps10/poms.nsf/lnx/0501415056#b2a
+    - title: SSA POMS SI 01415.045 - Federally Administered Optional Supplementary Payment Programs for January 2013, California recipient payment levels
+      href: https://secure.ssa.gov/apps10/poms.nsf/lnx/0501415045#b2a
+    - title: SSA POMS SI 01415.049 - Federally Administered Optional Supplementary Payment Programs for January 2017, California recipient payment levels
+      href: https://secure.ssa.gov/apps10/poms.nsf/lnx/0501415049#b2a
+    - title: SSA POMS SI 01415.054 - Federally Administered Optional Supplementary Payment Programs for January 2022, California recipient payment levels
+      href: https://secure.ssa.gov/apps10/poms.nsf/lnx/0501415054#b2a
+    - title: SSA POMS SI 01415.055 - Federally Administered Optional Supplementary Payment Programs for January 2023, California recipient payment levels
+      href: https://secure.ssa.gov/apps10/poms.nsf/lnx/0501415055#b2a
 values:
   1991-01-01: 68
+  # Allowances for 1992 through 2012 are not added yet, so the 1991 allowance carries forward (issue 10480).
+  2013-01-01: 84 # $950.40 - $866.40
+  2017-01-01: 86.32 # $982.04 - $895.72
+  2022-01-01: 106.99 # $1,147.20 - $1,040.21
+  2023-01-01: 118.01 # $1,251.74 - $1,133.73
+  2024-01-01: 128.87 # $1,311.81 - $1,182.94
   2025-01-01: 128.87 # $1,335.81 - $1,206.94
   2026-01-01: 128.87 # $1,362.81 - $1,233.94
diff --git a/...gov/states/ca/cdss/state_supplement/payment_standard/allowance/medical_care_facility.yaml b/...gov/states/ca/cdss/state_supplement/payment_standard/allowance/medical_care_facility.yaml
@@ -1,8 +1,8 @@
-description: California provides the following state supplement allowance for filers receiving care in a medical facility.
+description: California adds this state share to the federal payment cap for each resident of a Title XIX medical facility under the State Supplementary Payment program.
 metadata:
   unit: currency-USD
   period: month
-  label: California state supplement medical care facility allowance amount
+  label: California state supplement medical care facility state share
   reference:
     - title: California Welfare and Institutions Code Division 9, Part 3, Chapter 3, Article 5, Section 12200 (h)
       href: https://leginfo.legislature.ca.gov/faces/codes_displaySection.xhtml?lawCode=WIC&sectionNum=12200
@@ -12,7 +12,26 @@ metadata:
       href: https://cdss.ca.gov/Portals/13/SHD/ParaRegIndex/SSI%20Monthly%20Payment%20Amounts%202026.pdf
     - title: SSA POMS SI 01415.058 - Federally Administered Optional Supplementary Payment Programs for January 2026, California recipient payment levels
       href: https://secure.ssa.gov/apps10/poms.nsf/lnx/0501415058#b2a
+    - title: SSA POMS SI 01415.057 - Federally Administered Optional Supplementary Payment Programs for January 2025, California recipient payment levels
+      href: https://secure.ssa.gov/apps10/poms.nsf/lnx/0501415057#b2a
+    - title: SSA POMS SI 01415.056 - Federally Administered Optional Supplementary Payment Programs for January 2024, California recipient payment levels
+      href: https://secure.ssa.gov/apps10/poms.nsf/lnx/0501415056#b2a
+    - title: SSA POMS SI 01415.045 - Federally Administered Optional Supplementary Payment Programs for January 2013, California recipient payment levels
+      href: https://secure.ssa.gov/apps10/poms.nsf/lnx/0501415045#b2a
+    - title: SSA POMS SI 01415.049 - Federally Administered Optional Supplementary Payment Programs for January 2017, California recipient payment levels
+      href: https://secure.ssa.gov/apps10/poms.nsf/lnx/0501415049#b2a
+    - title: SSA POMS SI 01415.054 - Federally Administered Optional Supplementary Payment Programs for January 2022, California recipient payment levels
+      href: https://secure.ssa.gov/apps10/poms.nsf/lnx/0501415054#b2a
+    - title: SSA POMS SI 01415.055 - Federally Administered Optional Supplementary Payment Programs for January 2023, California recipient payment levels
+      href: https://secure.ssa.gov/apps10/poms.nsf/lnx/0501415055#b2a
+    - title: "California Department of Social Services, Local Assistance Estimates, 2026 May Revision reference documents, SSI/SSP Payment Standards #page 26-27"
+      href: https://cdss.ca.gov/Portals/9/Additional-Resources/Fiscal-and-Financial-Information/LOcal-Assistance-Estimates/2026-27/Revisions/2026-may-revision-reference-documents.pdf#page=26
 values:
-  1991-01-01: 42 # $30 + $12
-  2025-01-01: 62
-  2026-01-01: 62
+  1991-01-01: 12 # $42 - $30
+  # Shares for 1992 through 2012 are not added yet, so the 1991 share carries forward (issue 10480).
+  2013-01-01: 20
+  2017-01-01: 21
+  2022-01-01: 26
+  2023-01-01: 29
+  # The share holds for January 2024 through 2026, and CDSS projects it for January 2027.
+  2024-01-01: 32
diff --git a/...ters/gov/states/ca/cdss/state_supplement/payment_standard/allowance/out_of_home_care.yaml b/...ters/gov/states/ca/cdss/state_supplement/payment_standard/allowance/out_of_home_care.yaml
@@ -1,25 +1,42 @@
-description: California provides the following state supplement allowance for filers in a nonmedical out-of-home care facility.
+description: California adds this state share to the federal benefit rate for individuals in nonmedical out-of-home care under the State Supplementary Payment program.
 metadata:
   unit: currency-USD
   period: month
-  label: California state supplement out-of-home care allowance amount
+  label: California state supplement out-of-home care state share
   reference:
     - title: California Welfare and Institutions Code Division 9, Part 3, Chapter 3, Article 5, Section 12200 (g)
       href: https://leginfo.legislature.ca.gov/faces/codes_displaySection.xhtml?lawCode=WIC&sectionNum=12200
     - title: Supplemental Security Income (SSI) in California
       href: https://www.ssa.gov/pubs/EN-05-11125.pdf#page=2
     - title: California Department of Social Services, SSI Total Monthly Payment Amounts 2026
       href: https://cdss.ca.gov/Portals/13/SHD/ParaRegIndex/SSI%20Monthly%20Payment%20Amounts%202026.pdf
-    - title: SSA POMS SI 01415.058 - Federally Administered Optional Supplementary Payment Programs for January 2026, California couple payment levels
-      href: https://secure.ssa.gov/apps10/poms.nsf/lnx/0501415058#b2b
-    - title: California Department of Social Services, Local Assistance Estimates, 2026 May Revision reference documents, SSI/SSP Payment Standards
-      href: https://cdss.ca.gov/Portals/9/Additional-Resources/Fiscal-and-Financial-Information/LOcal-Assistance-Estimates/2026-27/Revisions/2026-may-revision-reference-documents.pdf#page=26
+    - title: SSA POMS SI 01415.058 - Federally Administered Optional Supplementary Payment Programs for January 2026, California recipient payment levels
+      href: https://secure.ssa.gov/apps10/poms.nsf/lnx/0501415058#b2a
     - title: California Department of Social Services, All County Information Notice I-59-25, CAPI payment standards for January 2026
       href: https://cdss.ca.gov/Portals/9/Additional-Resources/Letters-and-Notices/ACINs/2025/I-59_25.pdf#page=5
+    - title: SSA POMS SI 01415.057 - Federally Administered Optional Supplementary Payment Programs for January 2025, California recipient payment levels
+      href: https://secure.ssa.gov/apps10/poms.nsf/lnx/0501415057#b2a
+    - title: SSA POMS SI 01415.056 - Federally Administered Optional Supplementary Payment Programs for January 2024, California recipient payment levels
+      href: https://secure.ssa.gov/apps10/poms.nsf/lnx/0501415056#b2a
+    - title: SSA POMS SI 01415.045 - Federally Administered Optional Supplementary Payment Programs for January 2013, California recipient payment levels
+      href: https://secure.ssa.gov/apps10/poms.nsf/lnx/0501415045#b2a
+    - title: SSA POMS SI 01415.049 - Federally Administered Optional Supplementary Payment Programs for January 2017, California recipient payment levels
+      href: https://secure.ssa.gov/apps10/poms.nsf/lnx/0501415049#b2a
+    - title: SSA POMS SI 01415.054 - Federally Administered Optional Supplementary Payment Programs for January 2022, California recipient payment levels
+      href: https://secure.ssa.gov/apps10/poms.nsf/lnx/0501415054#b2a
+    - title: SSA POMS SI 01415.055 - Federally Administered Optional Supplementary Payment Programs for January 2023, California recipient payment levels
+      href: https://secure.ssa.gov/apps10/poms.nsf/lnx/0501415055#b2a
+    - title: "California Department of Social Services, Local Assistance Estimates, 2026 May Revision reference documents, SSI/SSP Payment Standards #page 26-27"
+      href: https://cdss.ca.gov/Portals/9/Additional-Resources/Fiscal-and-Financial-Information/LOcal-Assistance-Estimates/2026-27/Revisions/2026-may-revision-reference-documents.pdf#page=26
 values:
-  1991-01-01: 709
-  2025-01-01: 1_140.31 # $3,198.14 - $2,057.83
+  1991-01-01: 302 # $709 - $407
+  # Shares for 1992 through 2012 are not added yet, so the 1991 share carries forward (issue 10480).
+  2013-01-01: 412
+  2017-01-01: 423.37
+  2022-01-01: 524.77
+  2023-01-01: 578.82
   # SSA POMS, the CDSS 2026 May Revision and ACIN I-59-25 list $3,252.14 for couples,
   # twice the $1,626.07 individual rate (WIC 12200(g) sets the amount per recipient).
   # The CDSS monthly payment table and SSA pamphlet EN-05-11125 list $3,239.14.
-  2026-01-01: 1_153.31 # $3,252.14 - $2,098.83
+  # The share holds for January 2024 through 2026, and CDSS projects it for January 2027.
+  2024-01-01: 632.07
Original file line number	Diff line number	Diff line change
		@@ -0,0 +1 @@
		Store California's state supplement payment standards as state shares on top of the federal benefit rate, so the standards follow each federal cost-of-living adjustment, and date the shares and food allowances from January 2013 using the levels SSA POMS lists for each year.