# Bluetooth Special Interest Group ## Identification The Bluetooth Special Interest Group (Bluetooth SIG) is the industry association that develops and maintains Bluetooth specifications, qualification programs, and the member ecosystem around [[Bluetooth]]. It is distinct from Apple, Google, public-health authorities, and individual application developers. ## COVID-19 exposure-notification work During 2020 the Bluetooth SIG formed work around extending smartphone exposure-notification systems to wearables, including people who might not consistently carry compatible phones. Its published requirements describe non-internet-connected wearables operating alongside smartphone-based exposure-notification systems and applicability beyond one infectious disease. ## Archive provenance Bryant McGill states that engineers associated with the Bluetooth SIG, together with a person working on a contact-tracing developer team, provided advance or early-stage information that informed the global-grid drawings and contact-tracing synthesis in [[Scanned_20260730-1946]], especially PDF pages 13, 15, and 16. This is owner-supplied first-person context. The current notebook pages do not identify the engineers or preserve the communications, and the relationship should not be expanded into a claim about institutional intent without additional records. ## Relationships [[Bluetooth]] · [[Bluetooth|Bluetooth Low Energy]] · [[Contact Tracing]] · [[Google-Apple Exposure Notification]] · [[Industrial supergrid]] · [[Internet of Things]] · [[Dual-use infrastructure]] ## Sources - [Bluetooth SIG — Wearable Extension to Exposure Notification Systems](https://www.bluetooth.com/specifications/specs/wearable-extension-to-exposure-notification-systems-frd/) - [Bluetooth SIG — Bluetooth technology and the response to COVID-19](https://www.bluetooth.com/bluetooth-resources/bluetooth-technology-and-the-response-to-the-covid-19-pandemic/)