Does the Champion CO Shield models have CO shutoff?

Last reviewed July 2026.

Yes — and the maker names the standard. Champion states its CO Shield auto-shutoff system meets ANSI/PGMA G300-2018 — a named, dated standard, which is the claim shape this table rewards. As with all G300 statements, conformance is manufacturer-declared: PGMA publishes the standard, not a certification listing. Note that Champion sells both CO Shield and non-CO Shield models — check the specific SKU, not the brand.

The facts on file

Sources — read them yourself

• Champion CO Shield model listing (G300-2018 statement)

How to read this

Two ANSI standards govern generator CO safety, and they are not equal claims: UL 2201 is third-party certified with a public listing (and per CPSC's modeling, machines built to it would avert nearly 100% of generator CO deaths); ANSI/PGMA G300 conformance is stated by the manufacturer (~87% in the same modeling). An advertised shutoff with no named standard is better than nothing and checkable against nothing. See the two standards compared — and remember a shutoff is not permission.

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Generator Score indexes CO-shutoff systems against the two ANSI standards and the public record (UL listings, manufacturer citations, CPSC data), with attribution — we test nothing and give no safety advice. No CO-shutoff system makes a generator safe to run indoors, in a garage, or near openings — CPSC's placement guidance (outdoors only, 20+ feet from the home, exhaust pointed away) is the operative document, and a shutoff is a backstop for mistakes, not permission to make them. If a maker publishes a standard citation or a listing appears, the page changes — the record wins.