If the treaty investor is currently in the United States in a lawful nonimmigrant status, he or she may file Form I-129 to request a change of status to E-2 classification. If the desired employee is currently in the United States in a lawful nonimmigrant status, the qualifying employer may file Form I-129 on the employee's behalf.

A request for E-2 classification may not be made on Form I-129 if the person being filed for is physically outside the United States. Interested parties should refer to the U.S. Department of State website for further information about applying for an E-2 nonimmigrant visa abroad. Upon issuance of a visa, the person may then apply to a DHS immigration officer at a U.S. port of entry for admission as an E-2 nonimmigrant.

While holding an investors' visa Qualified treaty investors and employees will be allowed a maximum initial stay of two years. Requests for extension of stay may be granted in increments of up to two years each. There is no maximum limit to the number of extensions an E-2 nonimmigrant may be granted. All E-2 nonimmigrants, however, must maintain an intention to depart the United States when their status expires or is terminated.

An E-2 nonimmigrant who travels abroad may generally be granted an automatic two-year period of readmission when returning to the United States. It is generally not necessary to file a new Form I-129 with USCIS in this situation.

Treaty investors and employees may be accompanied or followed by spouses and unmarried children who are under 21 years of age. Their nationalities need not be the same as the treaty investor or employee. These family members may seek E-2 nonimmigrant classification as dependents and, if approved, generally will be granted the same period of stay as the employee. If the family members are already in the United States and are seeking change of status to or extension of stay in an E-2 dependent classification, they may apply by filing a single Form I-539 with fee. Spouses of E-2 workers may apply for work authorization by filing Form I-765 with fee. If approved, there is no specific restriction as to where the E-2 spouse may work.

As discussed above, the E-2 treaty investor or employee may travel abroad and will generally be granted an automatic two-year period of readmission when returning to the United States. Unless the family members are accompanying the E-2 treaty investor or employee at the time the latter seeks readmission to the United States, the new readmission period will not apply to the family members. To remain lawfully in the United States, family members must carefully note the period of stay they have been granted in E-2 status, and apply for an extension of stay before their own validity expires.