Comment by analyte123

This is false for H-1B - there is no "labor market test". Such a test is required for the PERM process in which an H-1B visa holder would seek a green card through their employer, although the definition of "prove" is up for debate [2].

[1] https://www.dol.gov/agencies/whd/fact-sheets/62o-h1b-recruit... [2] https://www.propublica.org/article/trump-immigration-h1b-vis...