Refiling is sometimes possible, but it depends heavily on how the earlier case was resolved.

Whether a petitioner can file a new mandamus action after an earlier one did not succeed depends significantly on the specific reason the earlier case ended and whether the circumstances have meaningfully changed.

Dismissal without prejudice generally preserves the option

If an earlier case was dismissed without prejudice — for example, due to a procedural defect like improper service or premature filing before exhausting administrative remedies — refiling after correcting the underlying problem is generally possible.

Dismissal with prejudice or an adverse ruling on the merits is more limiting

If a court denied mandamus relief after reaching the substantive merits of the case, doctrines like res judicata (claim preclusion) may bar relitigating the same claim based on the same facts, though a genuinely new set of facts (for example, a substantially longer subsequent delay) may support a new claim.

Changed circumstances as a basis for a new filing

Even where an earlier petition was denied, petitioners sometimes have grounds for a new filing if the underlying facts have changed significantly — for instance, if the delay has continued to grow substantially longer since the earlier ruling, or if new administrative history has developed.

The practical value of resolving procedural defects first

Where an earlier case failed due to a fixable procedural issue rather than a substantive ruling on the merits, correcting that specific defect before refiling is often the most straightforward path forward.

Consulting counsel before refiling

Given the potential preclusion issues involved, anyone considering a second mandamus filing after an earlier unsuccessful attempt should carefully evaluate — ideally with legal counsel — exactly why the earlier case failed before proceeding.