A right of an individual end-use customer to decide not to buy from a given aggregator. Typically used in situations where one or more aggregators are identified as the primary suppliers in an area, as in the case of a standard offer, a competition for a competitive franchise, a community access entity, or a co-op.
To explicitly decline to participate. Typically used in marketing programs and offerings, whereby an action (such as the use of personal information beyond the original, primary purpose for which it was collected) is undertaken unless an individual explicitly declines.
In HIV testing, a procedure whereby an individual is counseled about HIV and is only given the option of refusing an HIV test. If they refuse the test they have "opted out" of HIV testing. Studies have shown that more individuals agree to HIV testing when an opt out approach is used.