Sorry what? Yes, they do. Second-hand knowledge, though.
For an I-140 PERM (employment based green card) however the requirement is that there was an effort made to hire locally first.
Most people on HN are uninformed about this, well actually uninformed in general.
> The occupation requires:
> Theoretical and practical application of a body of highly specialized knowledge; and > Attainment of a bachelor's or higher degree in a directly related* specific specialty (or its equivalent) as a minimum for entry into the occupation in the United States.