Apple and Google announced plans to build COVID-19 tracing into iPhone and Android operating systems on April 10. The move marked a major partnership between the top two mobile operating system competitors in an effort to limit the spread of COVID-19. Platform updates to enable the COVID-19 contact tracing feature on iOS and Android were publicly released 40 days later on May 20.

So how do you participate in COVID-19 contact tracing efforts with your smartphone?

In this story, 9to5Mac is tracking which U.S. states are committed to supporting the Exposure Notifications API in iOS and Android apps, which states are against using the contact tracing method, and which states are undecided.

Learn how iPhone and Android Exposure Notifications and contact tracing works

Each public health authority in each country or region must first agree to adopt Apple and Google’s Exposure Notification API. Next the health authority must create an iOS and Android app for their region dedicated to supporting Exposure Notifications.

In the United States, rather than creating a single contact tracing app, the decision to support Exposure Notifications is made by each state’s public health authority. Alabama, South Carolina, and North Dakota are among the first U.S. states to express interest in Apple and Google’s Exposure Notifications API for assisting COVID-19 contact tracing.

The following information is based on inquiries sent to state governor’s offices and state health departments following the public release of iOS and Android updates to support the Exposure Notification API.

Which U.S. states are using Apple’s Exposure Notification API?
States Status
Alabama Will Participate
Alaska No Response
Arizona Not Participating*
Arkansas No Response
California Not Participating*
Colorado Not Participating*
Connecticut No Response
Delaware* Not Participating*
Florida No Response
Georgia No Response
Hawaii No Response
Idaho No Response
Illinois No Response
Indiana No Response
Iowa No Response
Kansas No Response
Kentucky No Response
Louisiana No Response
Maine Not Participating*
Maryland Not Participating*
Massachusetts No Response
Michigan Not Participating*
Minnesota No Response
Mississippi No Response
Missouri Not Participating*
Montana No Response
Nebraska No Response
Nevada No Response
New Hampshire No Response
New Jersey No Response
New Mexico No Response
New York No Response
North Carolina No Response
North Dakota Will Participate
Ohio Not Participating*
Oklahoma No Response
Oregon No Response
Pennsylvania Not Participating*
Rhode Island No Response
South Carolina Will Participate
South Dakota Not Participating*
Tennessee Not Participating*
Texas Not Participating*
Utah No Response
Vermont No Response
Virginia Will Participate
Washington Not Participating*
West Virginia Not Participating*
Wisconsin Not Participating*
Wyoming Not Participating*
4 of 50 States Participating
‎ *South Dakota “We are utilizing an app called Care 19 to assist with our contact tracing efforts. Care 19 requires an opt-in by users to provide us their location data, making it incredibly friendly to privacy concerns.”
‎ *West Virginia “No final decision has been made by West Virginia regarding the use of this technology.”
‎*California “We don’t have any updates on apps at this time, but if that changes, we will let you know.”
‎*Colorado “The State is not exploring using “exposure notification API” generated data at this time.”
‎*Washington “We are working in combination with University of Washington for an app that could be of assistance to people to find out if they have been in the proximity of people who are infected. That app could use hardware and software from Apple and Google. This is a very promising technology that we are working with the UW on.”
‎*Maryland “The Maryland Department of Health and local health departments will use the state-of-the-art contact tracing platform called COVID Link, which will assist in collecting information about people who test positive for COVID-19 and any individuals they have come into close contact with. COVID Link is expected to be operational by the end of the month.”
‎*Arizona “We are currently investigating all innovative strategies for conducting contact tracing.”
‎*Pennsylvania “The department is continuing to determine our next steps as far as a contact tracing app.”
‎*Tennessee “At this time the Tennessee Department of Health is not using an app for contact tracing or monitoring, and has not engaged in a vendor contract with any firm to help with contact tracing.”
‎*Wyoming “We have no current plans related to those type of apps.”
‎*Delaware “Delaware does not currently plan to use these technologies.”
‎*Ohio “We have no plans to do so at this time.”
‎*Missouri “We are considering a range of technologies to help with contact tracing, but we have not yet made any decisions.”
‎*Maine “At present, Maine CDC is reviewing the efficacy of the app you mention, as well as other apps that could aid our contact tracing efforts. The app to which you refer could prove helpful as travelers from other states visit Maine during the summer, so we are interested but still in the review process.”
‎*Michigan “We are reviewing many technology tools that have been offered to aid the COVID-19 response to ensure they adhere to our commitment to privacy. Our contact tracing is currently tech enabled through Deloitte, but people based through a multitude of volunteers. We are working with a university on a contact tracing program that will be announced in the near future and are leveraging texting as part of our current contact tracing efforts. To help Michiganders find testing near them, we are also offering an online testing locater powered by Castlight.

This is part of a broader strategy to Contain COVID to help slow the spread of the virus, keep our first responders safe and save lives in Michigan.”

‎Latest Update: June 30, 9:01 P.M. CDT

9to5Mac will update this report with new information as it develops over the next several weeks. This page will also be a resource for participating apps by state when more states come online with Exposure Notification apps.

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