Add Idaho LIHEAP regular heating assistance

changelog.d/id-liheap-wave2c.added.md

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+Add Idaho LIHEAP regular heating assistance for FY2026.

policyengine_us/parameters/gov/states/id/dhw/liheap/eligibility/fpg_rate.yaml

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+description: Idaho limits household income to this multiple of federal poverty guidelines for larger households under the Low Income Home Energy Assistance Program.
+values:
+  2025-10-01: 1.5
+
+metadata:
+  unit: /1
+  period: year
+  label: Idaho LIHEAP FPG rate
+  reference:
+    - title: Idaho FY2026 LIHEAP State Plan
+      href: https://liheapch.acf.gov/docs/2026/state-plans/ID_Plan_2026.pdf#page=8

policyengine_us/parameters/gov/states/id/dhw/liheap/eligibility/fpg_year_lag.yaml

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+description: Idaho uses federal poverty guidelines from this many years before the benefit fiscal year under the Low Income Home Energy Assistance Program.
+values:
+  2025-10-01: 1
+
+metadata:
+  unit: year
+  period: year
+  label: Idaho LIHEAP FPG year lag
+  reference:
+    - title: Idaho FY2026 LIHEAP State Plan, section 2.1
+      href: https://liheapch.acf.gov/docs/2026/state-plans/ID_Plan_2026.pdf#page=8
+    - title: Idaho Department of Health and Welfare, monthly limits effective October 1, 2025
+      href: https://healthandwelfare.idaho.gov/services-programs/financial-assistance/home-heating-and-utility-assistance/apply-heating-assistance

policyengine_us/parameters/gov/states/id/dhw/liheap/eligibility/program_year_start_month.yaml

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+description: Idaho starts the program year, used to test SNAP receipt, in this month of the preceding calendar year under the Low Income Home Energy Assistance Program.
+values:
+  2025-10-01: 10
+metadata:
+  unit: month
+  period: year
+  label: Idaho LIHEAP program year start month
+  reference:
+    - title: Idaho FY2026 LIHEAP State Plan, categorical eligibility
+      href: https://liheapch.acf.gov/docs/2026/state-plans/ID_Plan_2026.pdf#page=5

policyengine_us/parameters/gov/states/id/dhw/liheap/eligibility/smi_max_household_size.yaml

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+description: Idaho uses state median income limits for households up to this size under the Low Income Home Energy Assistance Program.
+values:
+  2025-10-01: 7
+
+metadata:
+  unit: person
+  period: year
+  label: Idaho LIHEAP maximum household size for SMI limits
+  reference:
+    - title: Idaho FY2026 LIHEAP State Plan
+      href: https://liheapch.acf.gov/docs/2026/state-plans/ID_Plan_2026.pdf#page=8

policyengine_us/parameters/gov/states/id/dhw/liheap/eligibility/smi_rate.yaml

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+description: Idaho limits household income to this share of state median income for smaller households under the Low Income Home Energy Assistance Program.
+values:
+  2025-10-01: 0.6
+
+metadata:
+  unit: /1
+  period: year
+  label: Idaho LIHEAP SMI rate
+  reference:
+    - title: Idaho FY2026 LIHEAP State Plan
+      href: https://liheapch.acf.gov/docs/2026/state-plans/ID_Plan_2026.pdf#page=8

policyengine_us/parameters/gov/states/id/dhw/liheap/income/sources/earned.yaml

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+description: Idaho counts these earned income sources under the Low Income Home Energy Assistance Program.
+# Every member's earnings count: IDAPA 16.04.14.010.06 counts moneys "from all
+# sources" and 151.02 does not exclude a minor's, although plan 1.9 leaves them
+# unchecked.
+values:
+  2025-10-01:
+    - employment_income
+    # Plan 1.9 checks "Wages". Basic pay is an input apart from employment_income;
+    # enter it in one of the two.
+    - military_basic_pay
+    - self_employment_income
+    - sstb_self_employment_income
+    - farm_operations_income
+    - partnership_s_corp_income
+
+metadata:
+  unit: list
+  period: year
+  label: Idaho LIHEAP countable earned income sources
+  reference:
+    - title: "Idaho FY2026 LIHEAP State Plan #page 5-7"
+      href: https://liheapch.acf.gov/docs/2026/state-plans/ID_Plan_2026.pdf#page=5
+    - title: IDAPA 16.04.14.010.06 as of September 10, 2025
+      href: https://web.archive.org/web/20250910171431id_/https://adminrules.idaho.gov/rules/current/16/160414.pdf#page=3

policyengine_us/parameters/gov/states/id/dhw/liheap/income/sources/unearned.yaml

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+description: Idaho counts these unearned income sources under the Low Income Home Energy Assistance Program.
+# Social Security is counted net of Part B separately; TANF enters once per household.
+values:
+  2025-10-01:
+    - ssi
+    - pension_income
+    # Military retirement includes Survivor Benefit Plan annuities.
+    - military_retirement_income
+    - railroad_benefits
+    # Ongoing IRA/401k distributions are separate from pension_income.
+    # Existing annual inputs do not identify an excluded one-time lump sum.
+    - retirement_distributions
+    - survivor_benefits
+    - total_unemployment_compensation
+    - strike_benefits
+    - rental_income
+    - farm_rent_income
+    - alimony_income
+    - interest_income
+    - ordinary_dividend_income
+    - estate_income
+    - disability_benefits
+    - workers_compensation
+    # IDAPA 16.04.14.010.06 counts moneys "from all sources", and 151.02 excludes
+    # none of these, although plan 1.9 leaves VA and general assistance unchecked.
+    - veterans_benefits
+    - general_assistance
+    - id_aabd
+    # Plan 1.9's checked Other line and IDAPA 16.04.14.151.02.f count gifts and
+    # lottery winnings over $30, although its lump-sum line is unchecked. The
+    # specific line is followed. The $30 test has no input: annual amounts count.
+    - gambling_winnings
+    - financial_assistance
+
+metadata:
+  unit: list
+  period: year
+  label: Idaho LIHEAP countable unearned income sources
+  reference:
+    - title: "Idaho FY2026 LIHEAP State Plan #page 5-7"
+      href: https://liheapch.acf.gov/docs/2026/state-plans/ID_Plan_2026.pdf#page=5
+    - title: "IDAPA 16.04.14.010.06 and 151.02 as of September 10, 2025 #page 3,5"
+      href: https://web.archive.org/web/20250910171431id_/https://adminrules.idaho.gov/rules/current/16/160414.pdf#page=3

policyengine_us/parameters/gov/states/id/dhw/liheap/payment/energy_burden/high_rate.yaml

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+description: Idaho places households in the high energy-burden group when estimated annual heating costs reach this share of annual income under the Low Income Home Energy Assistance Program.
+
+# Modeling convention: exactly 11% is high; the published chart omits that boundary.
+values:
+  2025-10-01: 0.11
+
+metadata:
+  unit: /1
+  period: year
+  label: Idaho LIHEAP high energy-burden rate
+  reference:
+    - title: Idaho PY26 LIHEAP Benefit Determination Chart PDF, PY23 LIHEAP Benefit Matrix Summary
+      href: https://liheapch.acf.gov/docs/2026/benefits-matricies/ID_BenefitMatrix_Heating_2026.pdf#page=2

policyengine_us/parameters/gov/states/id/dhw/liheap/payment/energy_burden/medium_rate.yaml

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+description: Idaho places households in the medium energy-burden group when estimated annual heating costs reach this share of annual income under the Low Income Home Energy Assistance Program.
+values:
+  2025-10-01: 0.06
+
+metadata:
+  unit: /1
+  period: year
+  label: Idaho LIHEAP medium energy-burden rate
+  reference:
+    - title: Idaho PY26 LIHEAP Benefit Determination Chart PDF, PY23 LIHEAP Benefit Matrix Summary
+      href: https://liheapch.acf.gov/docs/2026/benefits-matricies/ID_BenefitMatrix_Heating_2026.pdf#page=2

policyengine_us/parameters/gov/states/id/dhw/liheap/payment/estimated_heating_costs.yaml

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+description: Idaho uses these estimated heating-season costs by fuel and heating area under the Low Income Home Energy Assistance Program.
+
+# Modeling assumption: the PY2007 estimated nine-month heating costs continue.
+# This table is not confirmed as current for FY2026.
+# The FY2026 anchor records this modeling assumption, not a verified update.
+# Preserve the published amounts without inflation or a twelve-month uplift.
+# Provider groups are not distinguished. Electricity uses Idaho Power &
+# Southern Utilities; natural gas uses the complete Intermountain Gas column.
+# The old rent-cost column and old benefit percentages are not used.
+oil_or_propane:
+  1:
+    2025-10-01: 1_625
+  2:
+    2025-10-01: 1_845
+  3:
+    2025-10-01: 2_145
+natural_gas:
+  1:
+    2025-10-01: 977
+  2:
+    2025-10-01: 1_100
+  3:
+    2025-10-01: 1_207
+electricity:
+  1:
+    2025-10-01: 1_335
+  2:
+    2025-10-01: 1_455
+  3:
+    2025-10-01: 1_605
+coal_or_wood:
+  1:
+    2025-10-01: 1_200
+  2:
+    2025-10-01: 1_600
+  3:
+    2025-10-01: 1_800
+
+metadata:
+  propagate_metadata_to_children: true
+  unit: currency-USD
+  period: year
+  label: Idaho LIHEAP estimated nine-month heating costs
+  reference:
+    - title: Historical Idaho LIHEAP Intake Manual, Appendix C, average heating-cost matrix
+      href: https://web.archive.org/web/20170127123014id_/http://www.healthandwelfare.idaho.gov/Portals/_Rainbow/Manuals/LIHEAP/Appendices/c_htgcost_matrix_PY07.pdf#page=1
+    - title: Historical Idaho LIHEAP Intake Manual, Heating Cost Estimation, PY2007 nine-month matrix
+      href: https://web.archive.org/web/20080512165351id_/http://www.healthandwelfare.idaho.gov:80/Portals/_Rainbow/Manuals/LIHEAP/Benefit_Calculation/Heating_Cost_Estimation.htm

policyengine_us/parameters/gov/states/id/dhw/liheap/payment/heating_areas.yaml

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+description: Idaho groups counties into these heating areas under the Low Income Home Energy Assistance Program.
+
+# The recovered historical county map continues as a modeling assumption.
+# The FY2026 anchor is not a verified effective date.
+# Use the complete left-hand county table on page 2; the right-hand table
+# duplicates Power County and omits Elmore County.
+area_1:
+  2025-10-01:
+    - ADA_COUNTY_ID
+    - CANYON_COUNTY_ID
+    - ELMORE_COUNTY_ID
+    - GEM_COUNTY_ID
+    - GOODING_COUNTY_ID
+    - LATAH_COUNTY_ID
+    - NEZ_PERCE_COUNTY_ID
+    - OWYHEE_COUNTY_ID
+    - PAYETTE_COUNTY_ID
+    - WASHINGTON_COUNTY_ID
+area_2:
+  2025-10-01:
+    - ADAMS_COUNTY_ID
+    - BANNOCK_COUNTY_ID
+    - BENEWAH_COUNTY_ID
+    - BINGHAM_COUNTY_ID
+    - BOISE_COUNTY_ID
+    - BONNER_COUNTY_ID
+    - BOUNDARY_COUNTY_ID
+    - CASSIA_COUNTY_ID
+    - CLEARWATER_COUNTY_ID
+    - FRANKLIN_COUNTY_ID
+    - IDAHO_COUNTY_ID
+    - JEROME_COUNTY_ID
+    - KOOTENAI_COUNTY_ID
+    - LEWIS_COUNTY_ID
+    - LINCOLN_COUNTY_ID
+    - MINIDOKA_COUNTY_ID
+    - ONEIDA_COUNTY_ID
+    - POWER_COUNTY_ID
+    - SHOSHONE_COUNTY_ID
+    - TWIN_FALLS_COUNTY_ID
+area_3:
+  2025-10-01:
+    - BEAR_LAKE_COUNTY_ID
+    - BLAINE_COUNTY_ID
+    - BONNEVILLE_COUNTY_ID
+    - BUTTE_COUNTY_ID
+    - CAMAS_COUNTY_ID
+    - CARIBOU_COUNTY_ID
+    - CLARK_COUNTY_ID
+    - CUSTER_COUNTY_ID
+    - FREMONT_COUNTY_ID
+    - JEFFERSON_COUNTY_ID
+    - LEMHI_COUNTY_ID
+    - MADISON_COUNTY_ID
+    - TETON_COUNTY_ID
+    - VALLEY_COUNTY_ID
+
+metadata:
+  propagate_metadata_to_children: true
+  unit: list
+  period: year
+  label: Idaho LIHEAP heating-area counties
+  reference:
+    - title: Historical Idaho LIHEAP Intake Manual, Appendix A, county codes
+      href: https://web.archive.org/web/20170124204651id_/http://healthandwelfare.idaho.gov/portals/_rainbow/manuals/liheap/Appendices/a_codes_all.pdf#page=2

policyengine_us/parameters/gov/states/id/dhw/liheap/payment/matrix/coal_or_wood.yaml

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+description: Idaho provides this base coal or wood heating benefit by heating area and energy-burden group under the Low Income Home Energy Assistance Program.
+
+# Heating areas 1-3 correspond to Areas I-III in the published chart.
+# Energy-burden groups: 1 = low, 2 = medium, 3 = high.
+1:
+  1:
+    2025-10-01: 467
+  2:
+    2025-10-01: 486
+  3:
+    2025-10-01: 505
+2:
+  1:
+    2025-10-01: 544
+  2:
+    2025-10-01: 567
+  3:
+    2025-10-01: 590
+3:
+  1:
+    2025-10-01: 622
+  2:
+    2025-10-01: 648
+  3:
+    2025-10-01: 674
+
+metadata:
+  propagate_metadata_to_children: true
+  unit: currency-USD
+  period: year
+  label: Idaho LIHEAP base coal or wood heating benefit
+  breakdown:
+    - range(1, 4)
+    - range(1, 4)
+  breakdown_labels:
+    - Heating area
+    - Energy-burden group
+  reference:
+    - title: Idaho PY26 LIHEAP Benefit Determination Chart
+      href: https://liheapch.acf.gov/docs/2026/benefits-matricies/ID_BenefitMatrix_Heating_2026.pdf#page=1

policyengine_us/parameters/gov/states/id/dhw/liheap/payment/matrix/electricity.yaml

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+description: Idaho provides this base electric-heating benefit by heating area and energy-burden group under the Low Income Home Energy Assistance Program.
+
+# Electric utility-provider groups are not distinguished in the model for now.
+# Use only the Idaho Power & Southern Utilities column; omit the Avista &
+# Northern Utilities and Rocky Mountain Power columns.
+# Heating areas 1-3 correspond to Areas I-III in the published chart.
+# Energy-burden groups: 1 = low, 2 = medium, 3 = high.
+1:
+  1:
+    2025-10-01: 328
+  2:
+    2025-10-01: 342
+  3:
+    2025-10-01: 355
+2:
+  1:
+    2025-10-01: 378
+  2:
+    2025-10-01: 394
+  3:
+    2025-10-01: 410
+3:
+  1:
+    2025-10-01: 429
+  2:
+    2025-10-01: 447
+  3:
+    2025-10-01: 464
+
+metadata:
+  propagate_metadata_to_children: true
+  unit: currency-USD
+  period: year
+  label: Idaho LIHEAP base electric-heating benefit
+  breakdown:
+    - range(1, 4)
+    - range(1, 4)
+  breakdown_labels:
+    - Heating area
+    - Energy-burden group
+  reference:
+    - title: Idaho PY26 LIHEAP Benefit Determination Chart
+      href: https://liheapch.acf.gov/docs/2026/benefits-matricies/ID_BenefitMatrix_Heating_2026.pdf#page=1