The states object to federal guidance on transgender students' rights, including the right to use facilities matching their gender identity.
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Transgender students in Nebraska must now obtain approval from their school and a separate committee of doctors and psychiatrists to participate in activities that correspond with their true gender.
Failing to list both parents is clearly unconstitutional, so a federal court should order the state to do so without a trial, the couples say.
The proposal would establish a committee to decide who's trans and assure that birth gender generally supersedes gender identity.
Although officials aren't specifying how they will update the documents, they confirm a process to include both parents regardless of gender is under way.