Final answer:
It is true that employers are legally prohibited from hiring individuals required to be registered and yet not registered with the College. The law includes provisions for penalties against those who hire unauthorized aliens, aiming to reduce illegal immigration by limiting job opportunities.
Step-by-step explanation:
True, employers are prohibited by law from knowingly employing any individual who is required to be registered with the College but is not. This is part of a wider legal framework that aims to control and regulate employment practices to deter illegal immigration. Under certain acts, it is a requirement that employers verify that their employees have the right to work in the country. Furthermore, the law has made it a criminal offense to engage in a "pattern or practice" of knowingly hiring unauthorized aliens, and there are significant financial and other penalties for those caught employing illegal immigrants.