Add Nevada Child Care and Development Program (CCDP)

[hua7450]

Summary

Implements Nevada's Child Care and Development Program (CCDP) — the DWSS child care subsidy funded through the federal Child Care and Development Fund (CCDF). The subsidy pays a provider-day rate (by region, provider type, and child age) up to the state maximum, less a flat income-tier family copay, capped at actual childcare expenses. Eligibility uses a two-tier State Median Income (SMI) test, Nevada residency, child citizenship, a $1M asset limit, and a qualifying-activity (Purpose of Care) requirement.

Closes #8664.

Regulatory Authority

• CC PT 06-25 Annual Income Changes (eff. Oct 1, 2025) — current income chart and flat copay tiers. PDF (3 pages; intake chart p.2, renewal chart p.3)
• FFY 2025-2027 CCDF State Plan (ACF-118) — $1M asset limit, two-tier SMI eligibility, per-day base-rate table. PDF (296 pages; base-rate table file pp. 54-55)
• Child Care Policy Manual (July 1, 2024, MTL 01/24) — activity/Purpose of Care categories, residency, child citizenship, age limits, income deductions, copay waivers. PDF (156 pages)
• 2022 Child Care Market Rate Survey (eff. Apr 1, 2022) — 75th-percentile provider rates by region, provider type, and age, the survey basis for the State Plan base rates. PDF (92 pages)

Source-precedence caveat: The July 2024 Policy Manual's copay (MS 170/180) and income-eligibility sections are outdated — they still describe the pre-October-2024 sliding-scale copay (0-7% of income) and a single 85% SMI eligibility test. The Oct 2024 flat-copay change documented in CC PT 06-25 and the two-tier SMI eligibility in the FFY 2025-2027 CCDF State Plan are authoritative for the current flat copay and the 41%/49% SMI tiers. The Policy Manual is used only for rules that were not superseded.

Eligibility

Requirement	Source	How Modeled
Child under age 13	Manual MS 210	nv_ccdp_eligible_child: age < child_age_limit (13)
Special-needs child under age 19	Manual MS 211	nv_ccdp_eligible_child: where(has_developmental_delay, age < 19, age < 13)
Two-tier SMI income test	CCDF State Plan + CC PT 06-25	nv_ccdp_income_eligible: new applicants ≤41% SMI (smi_intake), enrolled families ≤49% SMI (smi_renewal), keyed off nv_ccdp_enrolled
Nevada residency	Manual MS 218	defined_for = StateCode.NV on the eligibility and output variables
Child U.S. citizen or eligible non-citizen (parent citizenship not required)	Manual MS 214	nv_ccdp_eligible_child reuses federal is_ccdf_immigration_eligible_child
$1,000,000 family asset limit	CCDF State Plan; 45 CFR 98.20	nv_ccdp_eligible reuses federal is_ccdf_asset_eligible (gov.hhs.ccdf.asset_limit)
Qualifying activity (Purpose of Care 410-470)	Manual MS 400 series	nv_ccdp_activity_eligible: meets_ccdf_activity_test | is_tanf_enrolled | is_homeless (existing status hooks; no new POC enum input)

Income & SMI tiers

Nevada uses State Median Income, not the federal poverty line. nv_ccdp_smi returns monthly 100% SMI via the federal smi() helper, pinned to the October-1 chart effective date (the chart updates annually on Oct 1). nv_ccdp_income_eligible then applies the tier ratio to monthly SMI:

• New applicants (intake): countable income ≤ 41% SMI (income/smi_intake.yaml).
• Enrolled families (renewal/redetermination): countable income ≤ 49% SMI (income/smi_renewal.yaml). This is the renewal ceiling and matches the top of the published copay scale exactly.

The federal CCDF rules also define an 85% SMI mid-certification-period protection (45 CFR 98.21(a)(1)(ii)): a state may not terminate a family mid-certification until income exceeds 85% SMI. PolicyEngine does not track certification periods at the moment, so this mid-period protection is not enforced. The operative enrolled income ceiling in the model is the 49% renewal tier; the 85% protection is documented as a limitation in nv_ccdp_income_eligible, not modeled.

Benefit Calculation

subsidy = max(min(provider charge, state max monthly rate) − flat family copay, 0)
          capped at actual childcare expenses

• State max monthly rate = per-day rate × billed days, where the per-day rate comes from a base-rate table keyed by 2-region (Clark vs. rest-of-state) × provider type (center / family child care) × age group (infant / toddler / preschool / school-age). nv_ccdp_provider_rate looks up rates/center.yaml or rates/fcc.yaml; nv_ccdp_region derives the region from county; nv_ccdp_age_group derives the age band from age in months.
• Flat family copay (nv_ccdp_copay, keyed by % SMI): $0 (≤32.99% SMI), $90 (33-42% SMI), $150 (43-49% SMI). Waived (set to $0) for TANF-NEON referrals (is_tanf_enrolled), CPS/foster placements (is_in_foster_care / receives_or_needs_protective_services), and homeless households (is_homeless).
• Per-child reimbursement is summed over eligible children in care, the family copay is subtracted once at the family level, and the result is floored at 0.

Requirements Coverage

20 of 20 in-scope requirements are covered.

REQ	Description	Parameter	Variable	Test
001	Child under age 13	eligibility/child_age_limit.yaml	nv_ccdp_eligible_child	eligibility/nv_ccdp_eligible_child.yaml
002	Special-needs child under age 19	eligibility/special_needs_child_age_limit.yaml	nv_ccdp_eligible_child	eligibility/nv_ccdp_eligible_child.yaml
004	Two-tier SMI (41% intake / 49% renewal)	income/smi_intake.yaml, income/smi_renewal.yaml	nv_ccdp_income_eligible, nv_ccdp_copay	eligibility/nv_ccdp_income_eligible.yaml, copay/nv_ccdp_copay.yaml
006	SMI accessor, Oct-1 instant	—	nv_ccdp_smi	nv_ccdp_smi.yaml
007	$1M asset limit (federal reuse)	gov.hhs.ccdf.asset_limit	nv_ccdp_eligible (is_ccdf_asset_eligible)	eligibility/nv_ccdp_eligible.yaml, integration.yaml
008	Nevada residency	—	defined_for = StateCode.NV	integration.yaml
009	Child immigration (federal reuse)	—	nv_ccdp_eligible_child (is_ccdf_immigration_eligible_child)	eligibility/nv_ccdp_eligible_child.yaml
010	Caretakers in approved Purpose of Care	—	nv_ccdp_activity_eligible	eligibility/nv_ccdp_activity_eligible.yaml
011	POC categories 410-470	—	nv_ccdp_activity_eligible	eligibility/nv_ccdp_activity_eligible.yaml
013	min(charge, max rate) − copay	—	nv_ccdp	nv_ccdp.yaml, integration.yaml
014	Per-day → monthly conversion	billing/monthly_billed_days.yaml	nv_ccdp	nv_ccdp.yaml, integration.yaml
015	Per-day base-rate table (region × type × age)	rates/center.yaml, rates/fcc.yaml	nv_ccdp_provider_rate	nv_ccdp_provider_rate.yaml
016	Region from county	—	nv_ccdp_region	nv_ccdp_region.yaml
017	Age group from age via months scale	age_group/months.yaml	nv_ccdp_age_group	nv_ccdp_age_group.yaml
018	Flat copay $0 / $90 / $150	copay/amount.yaml	nv_ccdp_copay	copay/nv_ccdp_copay.yaml
019	Copay waiver (TANF-NEON / foster / homeless)	—	nv_ccdp_copay	copay/nv_ccdp_copay.yaml
020	Countable income = gross − deductions	income/countable_income/sources.yaml	nv_ccdp_countable_income	income/nv_ccdp_countable_income.yaml
022	Court-ordered child support paid deduction	—	nv_ccdp_countable_income (child_support_expense)	income/nv_ccdp_countable_income.yaml
023	No parent-citizenship income exclusion	—	covered by REQ-009 (child-only immigration check)	eligibility/nv_ccdp_eligible_child.yaml

(Supporting input enum nv_ccdp_provider_type and the nv_ccdp_enrolled input boolean each have their own test.)

Not Modeled

What	Source	Why
85% SMI mid-certification hard-exit protection (REQ-005)	CCDF State Plan; 45 CFR 98.21(a)(1)(ii)	We don't track certification periods at the moment, so the mid-period protection is not simulatable; the operative enrolled ceiling modeled is 49% SMI.
Average Cost of Care deduction (REQ-021)	Manual MS 302.1	Deferred per scope decision — narrow child-only Kinship-Care / child-only-TANF / SSI-children population we don't track at the moment.
Mid-certification continuity past age 13/19 (REQ-003)	Manual MS 210/211	No certification-period tracking at the moment.
Activity-hour verification and overlapping-schedule computation (REQ-012, REQ-026)	Manual MS 400 series	We don't track activity-hour verification or per-parent schedules at the moment (administrative).
12-month certification period / continuity windows (REQ-024)	Manual; federal CCDF	We don't track certification time windows at the moment.
Job-search 90-day/year limit + POC funding availability (REQ-025)	Manual MS 430	We don't track per-category funding availability or job-search day counts at the moment.
Part-day / fractional-day rate adjustments and per-child fee ordering (REQ-028)	—	No Nevada part-day rule located; not modeled.
Per-child copay waivers (REQ-029)	Manual MS 163	Waiver applied at the whole-family level instead.

Microsimulation note

nv_ccdp returns $0 in microsimulation because meets_ccdf_activity_test is an unpopulated input flag in the CPS microdata (false for every unit), so nv_ccdp_activity_eligible is false everywhere. This is the same data-input artifact that affects sibling CCDF state programs (e.g. wv_child_care_subsidies is also $0 in microsim for the same reason). It is a known microdata input gap, not a formula bug. The full benefit pipeline — both regions, both provider types, all four age groups, all three copay tiers, both enrollment states, and the copay-waiver path — is verified through the unit and integration tests, which set meets_ccdf_activity_test: true (or is_homeless: true) and produce the expected non-zero benefits.

Verification TODO

• Confirm the per-day provider rates against an operational rate sheet (The Children's Cabinet / Las Vegas Urban League), as distinct from the CCDF State Plan base-rate table and the 2022 Market Rate Survey.
• Confirm the age-band month cutoffs (25 / 37 / 60-month boundaries, currently following the sibling CCAP convention) and the daily→monthly billing convention (21.67-day full-time-month proxy — Nevada does not publish an explicit conversion).
• Confirm the CC PT 06-25 effective-date label (Oct 1, 2025) against the 2024-10-01 parameter effective dates (the flat-copay structure took effect Oct 1, 2024).
• Confirm the 32.99% vs. 33% SMI copay boundary and the full MS 306 counted/excluded income source list.
• CI passes.

Test plan

• 101 unit + integration tests pass locally (policyengine-core test policyengine_us/tests/policy/baseline/gov/states/nv/dwss/ccdp/ -c policyengine_us -v).
• CI passes.

Files Added

policyengine_us/parameters/gov/states/nv/dwss/ccdp/
  age_group/months.yaml
  billing/monthly_billed_days.yaml
  copay/amount.yaml
  eligibility/child_age_limit.yaml
  eligibility/special_needs_child_age_limit.yaml
  income/smi_intake.yaml
  income/smi_renewal.yaml
  income/countable_income/sources.yaml
  rates/center.yaml
  rates/fcc.yaml

policyengine_us/variables/gov/states/nv/dwss/ccdp/
  nv_ccdp.py
  nv_child_care_subsidies.py
  nv_ccdp_age_group.py
  nv_ccdp_enrolled.py
  nv_ccdp_provider_rate.py
  nv_ccdp_provider_type.py
  nv_ccdp_region.py
  nv_ccdp_smi.py
  copay/nv_ccdp_copay.py
  eligibility/nv_ccdp_activity_eligible.py
  eligibility/nv_ccdp_eligible.py
  eligibility/nv_ccdp_eligible_child.py
  eligibility/nv_ccdp_income_eligible.py
  income/nv_ccdp_countable_income.py

policyengine_us/tests/policy/baseline/gov/states/nv/dwss/ccdp/
  integration.yaml
  nv_ccdp.yaml
  nv_child_care_subsidies.yaml
  nv_ccdp_age_group.yaml
  nv_ccdp_enrolled.yaml
  nv_ccdp_provider_rate.yaml
  nv_ccdp_provider_type.yaml
  nv_ccdp_region.yaml
  nv_ccdp_smi.yaml
  copay/nv_ccdp_copay.yaml
  eligibility/nv_ccdp_activity_eligible.yaml
  eligibility/nv_ccdp_eligible.yaml
  eligibility/nv_ccdp_eligible_child.yaml
  eligibility/nv_ccdp_income_eligible.yaml
  income/nv_ccdp_countable_income.yaml

changelog.d/nv-ccap.added.md

Registry edits (2):

• policyengine_us/parameters/gov/hhs/ccdf/child_care_subsidy_programs.yaml — added nv_child_care_subsidies to the federal child_care_subsidies aggregator.
• policyengine_us/programs.yaml — added the NV CCDP state_implementations entry under the CCDF federal program.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 100.00%. Comparing base (fbace93) to head (13e01be).
⚠️ Report is 24 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##              main     #8665    +/-   ##
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  Coverage   100.00%   100.00%            
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  Files            1        14    +13     
  Lines           23       216   +193     
  Branches         0         1     +1     
==========================================
+ Hits            23       216   +193     

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