Which law penalized employers who hired illegal immigrants?

The Immigration Reform and Control Act (IRCA)

Explanation:

The Immigration Reform and Control Act (IRCA) was a law which penalized employers who hired illegal immigrants. The law was signed by President Ronald Reagan in 1986. This act of Congress required employers to attest to their employees' immigration status. What it meant in practice is that it made it illegal to hire or recruit illegal immigrants knowingly, under the risk of penalty.

i confess that there are several parts of this constitution which i do not at present approve, but i am not sure i shall never approve them: for having lived long, i have experienced many instances of being obliged by better information or fuller consideration, to change opinions even on important subjects, which i once thought right, but found to be otherwise. it is therefore that the older i grow, the more apt i am to doubt my own judgment, and to pay more respect to the judgment of others.

your answer is 1930's

explanation

this is just around the time the great depression was starting and putting the us ecnomy into ecnomic failure causing the goverment to take a much larger rule to try and pieace it back together