There is no requirement that a petition first be filed with the USCIS. Chileans and Singaporeans may apply directly at a U.S. consulate for an H1B1 visa. A petition may be filed with the USCIS to change status to H1B1, or to extend H1B1 status. As with the H1B visa, a labor condition application (LCA), certified by the U.S. Department of Labor, is required.