Applicants should be aware that a visa does not guarantee entry into the United States. The U.S. Directorate of Border and Transportation Security in the Department of Homeland Security has the authority to deny admission. Also, the period of a treaty investor's period of stay is determined by the Directorate of Border and Transportation Security, not the consular officer. At the port of entry, a Directorate of Border and Transportation Security official validates Form I-94, Record of Arrival-Departure, which notes the length of stay permitted. Those persons who wish to stay beyond the time indicated on their Form I-94 must contact the Directorate of Border and Transportation Security to request Form I-539, Application to Extend Status. The decision to grant or deny a request for extension of stay is made solely by the Directorate of Border and Transportation Security.

For more information on the E-2 category, please click one of the following links:
Description
Requirements
Documents
Duration of E-2 visa, Stay and Extension
Visa Re-issuance
Terms and conditions of an E-2 visa
Family Benefits
U.S. Port of Entry
Change to E-2 classification in the United States
USCIS Processing Time
The timescale for us to prepare for an E-2 application
Change to Other Non-immigrant Status
Frequently Asked Questions About E-2 Visa