The Supreme Administrative Court concluded that the Employment Act from 2009 does not regulate temporary business travel or other temporary deployment of employees outside the place of work specified in the work permit. It is therefore not necessary to apply for a new work permit. The Court conducted a thorough interpretation of the law. The Ministry of Labour and Social Affairs was consistent interpretation of the Employment Act until the end of 2011. MPSV changed the interpretation from 2012 completely, so the foreigners may not go on business trips outside the place of their work. According to the decision of the Supreme Administrative Court can travel on business trips without any further authorization from the Labour Office. Read the adjudication here.