Data provenance

Data freshness and change history

Understand when our official-source datasets were checked.

Commercial ice-machine data

Retrieved: 2026-11-05T04:56:59.884004+00:00. Raw EPA records: 651. Unique usable models: 628. Rejected records: 0.

Compared with last full publication: 0 added, 0 removed, and 0 changed normalized models. These reflect changes in published data records; they do not prove a product was launched or discontinued.

EPA classifications and certification conditions must be checked before making purchasing decisions.

Other research sources

smart home: ok, construction: ok

Smart-home statistics do not establish specific device/hub compatibility; Chicago permit counts are not confirmed construction starts.