Your United States-based employer is not required to submit a petition to the Department of Homeland Security as a prerequisite for visa issuance. However, your employer must obtain a Labor Condition Application (LCA), ETA Form 9035, from the Department of Labor.
A US-based employer that wants to sponsor you for an E-3 visa must obtain a Labor Condition Application (LCA) from the US Department of Labor. The potential employer must also provide you with a job letter that establishes that you will be engaged in qualifying work in a “specialty occupation” and will be paid the actual or prevailing wage for that specialty occupation. Unlike most other temporary employment visas the US-based employer does not need to submit a petition for pre-approval to the USCIS.
The validity of the visa should not exceed the validity period of the LCA. The Department of State and DHS have agreed to a 24-month maximum validity period for E-3 visas. This validity may be renewed.
E-3 applicants are admitted for a two-year period renewable indefinitely, provided the alien is able to demonstrate that he/she does not intend to remain or work permanently in the U.S.