# Atlas Commons research objects — ACA marketplace coverage for Mississippi (2026) — context brief Mississippi's ACA marketplace coverage from the CMS ACA Plan Attributes PUF, with each figure's epistemic status labeled: every plan count — medical plans, standalone dental plans, and breakdowns by metal level, plan type, HSA-eligibility, and referral requirement — is a measured census of plans offered (counts of rows in the CMS file, all labeled RECORDED); the sticker premium landscape by metal tier (40yo, pre-subsidy) is a recorded set of published CMS Rate PUF rates, with the subsidy note labeled CONTEXT; the boundary note is context (labeled CONTEXT) — these count plans offered and their sticker price, not enrollment, the insured rate, or net cost after subsidies. Sources: CMS ACA Plan Attributes PUF, CMS Marketplace Rate PUF. CC0. Claims (warrant · source), each re-fetchable to verify: - **240 ACA medical marketplace plans are offered in Mississippi for plan year 2026** — RECORDED · CMS ACA Plan Attributes PUF (2026 plan year) (https://www.cms.gov/marketplace/resources/data/public-use-files) - **Medical plan counts by CMS metal level in Mississippi (2026): Silver 112, Expanded Bronze 68, Gold 56, Bronze 4** — RECORDED · CMS ACA Plan Attributes PUF (2026 plan year) (https://www.cms.gov/marketplace/resources/data/public-use-files) - **Medical plan counts by CMS plan type in Mississippi (2026): HMO 185, EPO 55** — RECORDED · CMS ACA Plan Attributes PUF (2026 plan year) (https://www.cms.gov/marketplace/resources/data/public-use-files) - **72 of 240 medical plans in Mississippi are HSA-eligible (2026)** — RECORDED · CMS ACA Plan Attributes PUF (2026 plan year) (https://www.cms.gov/marketplace/resources/data/public-use-files) - **240 of 240 medical plans in Mississippi require no specialist referral (2026)** — RECORDED · CMS ACA Plan Attributes PUF (2026 plan year) (https://www.cms.gov/marketplace/resources/data/public-use-files) - **27 standalone dental plans are offered in Mississippi for plan year 2026** — RECORDED · CMS ACA Plan Attributes PUF (2026 plan year) (https://www.cms.gov/marketplace/resources/data/public-use-files) - **STICKER ACA premiums in Mississippi for a 40-year-old (before tax credits): Silver median $705/mo** — DERIVED · CMS Marketplace Rate Public Use File (atlas-aggregated per tier) (https://www.cms.gov/marketplace/resources/data/public-use-files) - **What the Mississippi premiums mean — sticker, not your price** — INTERPRETATION · Coverage Atlas framing (over the CMS Rate PUF figures above) (https://coverage-atlas.ryanjhunter.workers.dev/) - **What these coverage figures are — and are NOT — for Mississippi (the epistemic boundary)** — INTERPRETATION · Coverage Atlas framing (over the CMS facts above) (https://coverage-atlas.ryanjhunter.workers.dev/) Do not take these on trust — re-fetch each named source. Full structured object: `https://coverage-atlas.ryanjhunter.workers.dev/coverage/states/ms.jsonld` · anatomy of the research object: see /commons/the-research-object **Mississippi — every coverage indicator (typed)** (11): Medical plans offered — 240 — RECORDED — CMS ACA Plan Attributes PUF (2026); Medical issuers — 5 — RECORDED — CMS ACA Plan Attributes PUF (2026); HSA-eligible medical plans — 72 — RECORDED — CMS ACA Plan Attributes PUF (2026)… **Mississippi — medical plans by CMS metal level (RECORDED)** (4): Silver — 112; Expanded Bronze — 68; Gold — 56… **Mississippi — medical plans by CMS plan type (RECORDED)** (2): HMO — 185; EPO — 55… **Mississippi — medical plans by market coverage (RECORDED)** (1): Individual — 267… **Mississippi — sticker ACA premiums by metal tier (40yo, pre-subsidy, DERIVED)** (3): Bronze — 102 — 634 — 607 — 678 — 563 — 778; Silver — 90 — 705 — 682 — 808 — 598 — 913; Gold — 82 — 956 — 872 — 1031 — 812 — 1109… **Mississippi — issuers present on the marketplace (RECORDED)** (10): Ambetter from Magnolia Health; BEST Life; Cigna Healthcare…