U.S. Code of Federal Regulations 8 CFR 214.2(h)(4)(iii)(D), describes the kind and amount of experience which can be used to establish the equivalency of a university degree. As a guide, three years of professional experience may generally be used as a substitute for each year of university-level education. This means you would need to show 12 years’ experience in the field you are applying to work in. During visa interviews, applicants should be prepared to provide documentation outlining their work history, education, and training. A consular officer will determine whether the educational and employment information provided meets the eligibility requirements for a U.S. visa.