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.
Illegal Immigration and the IRCA of 1986. Immigration legislation focusing on illegal immigration was considered and passed by the 99th Congress, and enacted as the Immigration Reform and Control Act (IRCA) of 1986 P.L. 99-603 (November 6, 1986; 100 Stat.ongress enacted the first significant federal legislation relating specifically to immigration. Among its provisions, it: (1) established the continuing reporting of immigration to the United States; and (2) set specific sustenance rules for passengers of ships leaving U.S. ports for Europe.