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Immigration, Form I-9 and Work Visas: Maine

Immigration, Form I-9 and Work Visas requirements for other states

Federal law and guidance on this subject should be reviewed together with this section.

Author: Melissa A. Silver, XpertHR Legal Editor


  • Employers cannot knowingly hire aliens who have not been lawfully admitted to the US for permanent resident unless authorized by the Immigration and Naturalization Service. See Hiring Aliens for Employment.
  • If an employer hires an alien who is not entitled to lawful residence, it will be subject to penalties, unless the employee can provide an affirmative defense. See Penalties; Affirmative Defense.