High Quality Content by WIKIPEDIA articles! In Law, a valid claim is a "grievance that can be resolved by legal action." It is a claim that is not frivolous, nor is based on fraud. In some state court systems, a valid claim is called a Claim for relief or a Claim and delivery. Valid claim is used in a number of different contexts in Federal law. Under US bankruptcy law, a creditor must have a valid claim in order to attend the creditors' meeting and to collect all or part of a debt. A valid claim is used to describe beneficial interest in antiquities under the Native American Graves Protection and Repatriation Act (NAGPRA) of 1990.