Skilled worker positions are not seasonal or temporary and require at least two years of experience or training. The training requirement may be met through relevant post-secondary education. The Form ETA-750 (Labor Certification) states the job requirements, which determine whether a job is skilled or unskilled.

Professionals must hold a U.S. baccalaureate degree or foreign equivalent degree that is normally required for the profession. Education and experience may hot be substituted for the degree.
Other workers are in positions that require less than two years of higher education, training, or experience. However, due to the long backlog, a petitioner could expect to wait many years before being granted a visa under this category.