Modifies sections 5, 6, 8, 17, 21, 25, 27, 29, 30, 31, 33, 35, 37, 37a, 39, 41 - 44, 47 - 52, 59, 60, 60a, 61, 63, 66, 72, 75 - 78, 80, 85-89, 91-94, 96-98, 100, 102, 107-116, 118, 119, 121-127, 132, 136, 139-142, 145-147, 147a, 147b of the Act No. 435/2004. These changes concern employment of foreigners at the territory of Czech Republic and the limitation of this employment in case of adverse effect to the domestic labour market.