There are many forms of non-waiver, so it depends on the context and/or the form that you are referring to or the form that you or someone else signed.

Typically, the term "non waiver" is a statement meaning that any information disclosed does not waive or invalidate any of the terms or conditions of any policy or policies.

To find out exactly what the term non waiver meant in the context and/or form you signed or saw it stated, ask the insurance company involved.

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