This act gives illegal immigrants who have resided in the United States for more than five years the chance to apply for citizenship, after paying fines and taxes. Those in the country for two to five years, or less than two years, would be subject to different restrictions. The act also allows employers to bring foreign workers into the country with a "blue card", permitting a stay of six years after which the employee would return to their country of origin for one year. Border fencing would cover 370 miles (rather than 700 miles, as specified in H.R.4437), and the number of H-1B visas issued for skilled foreign workers would increase. Employers of undocumented workers would be fined.