California state supplement pays blind children, adult dependents and children in care facilities the wrong amount #10557

Problem

The California state supplement pays blind or disabled dependent children the disabled minor amount, and pays dependents aged 18 or older nothing. SSA's California payment levels (POMS SI 01415.058, sections B.1 and B.2.a, January 2026) assign different categories:

Reference: https://secure.ssa.gov/apps10/poms.nsf/lnx/0501415058

Notes

• CAPI already pays a blind child the blind standard (ca_capi_payment_standard.yaml Case 12, citing MPP 49-050.253), so SSP and CAPI disagree for blind children.
• ca_state_supplement_aged_disabled_count sums heads and spouses and selects the couple amount when the count exceeds one, so adding adult dependents to it would pay a couple rate to two unrelated individuals. Adult dependents need their own individual amount.
• PR Mark disabled dependent children eligible for the California state supplement #10554 makes ca_state_supplement_eligible_person true for blind or disabled dependents under 18 without changing any payment. Its age-limit test keeps the 18-year-old's flag false to match the model's zero payment; this issue should flip that case.
• The WIC 12200 text could not be fetched during review (bot checks on leginfo, justia and findlaw); confirm the categories against the statute before changing payments.