Form G-1145, E-Notification of Application/Petition Acceptance, is an optional USCIS form that enables applicants to receive electronic notifications via email or text when their application has been accepted at a USCIS lockbox facility. While it does not replace the official receipt notice (Form I-797), it provides faster acknowledgment that a case is in process. This option is particularly valuable for time-sensitive filings such as adjustment of status (Form I-485), employment authorization (Form I-765), naturalization (Form N-400), or family petitions (Form I-130), where early confirmation provides applicants with timely assurance and greater confidence in the progress of their submission.