Motions under Penal Code §1473.7 must be filed with “reasonable diligence” after the later of the following: The date on which you receive a notice to appear in immigration court based on the conviction or sentence; or The date on which a removal order based on the conviction or sentence becomes final. “Reasonable diligence” means without undue delay after you discover, or reasonably could have discovered, the evidence supporting the motion to vacate. However, you do not need to wait for a notice to appear in order to file a 1473.3 motion. You can do so at any time, including when applying for a green card, naturalization, or other immigration benefit.