Labrum - a cover which may be loosely referred to as the upper lip. Mandibles - hard, powerful cutting jaws. Maxillae - 'pincers' which are less powerful than the mandibles. They are used to steady and manipulate the food. Labium - the lower cover, often referred to as the lower lip.
The President, as head of the federal executive branch, is ultimately in charge of enforcing the immigration laws of the United States. In turn, he must make discretionary decisions about whether and when to prosecute immigration law violators through deportation and other sanctions.
Immigration Reform and Control Act of 1986. The Immigration Reform and Control Act (IRCA), Pub.L. 99â603, 100 Stat. 3445, enacted November 6, 1986, also known as the SimpsonâMazzoli Act, signed into law by Ronald Reagan on November 6, 1986, is an Act of Congress which reformed United States immigration law. The Act.