Final answer:
Employers must request documentation from new hires to prove their eligibility to work in the U.S. based on the options listed on the I-9 form, which can include documents like a passport or Social Security card.
Step-by-step explanation:
The Immigration Control and Reform Act requires that all new hires prove their eligibility to work in the United States at the time of hire. The documents that should be requested for this purpose are not limited to a specific set, as it is the new hire's choice based on the options listed on the I-9 form.
Acceptable documentation can include a variety of documents such as a passport, driver's license, state ID, Social Security card, or other documents that prove both identity and employment authorization as per the list provided on the I-9 form. Employers are responsible for verifying that each employee is legally entitled to reside and work in the U.S., and failure to comply can result in penalties.