Are there any laws or regulations in the United States that define what is or is not acceptable when doing customer service outreach calls. More specifically, what I mean by outreach is an unsolicited call to a customer regarding account activity (e.g. credit card expired).
If the reason for the call is legitimate credit card expired you should be able to make additional offers during that contact. You have an existing business relationship, otherwise you wouldn't have their credit card number
Here is information regarding the National Do Not Call Registry