Share Airtag Location with another User

Unfortunately it is not currently possible to share AirTag locations with another user. Use Feedback - AirTag - Apple to ask Apple to consider adding this feature.

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It is not possible - the air tags are tied to the AppleID. You would have to fix two AirTags to the object you want to keep track of - for example add one AirTag for you and AirTag for your husband to the collar of your dog or cat.