In General, One target of the European Union is to ensure the mobility of workforce within the EU. Included in this goal is the elimination of any kinds of unequal treatment due to nationality with regard to employment, wages, working conditions and to home the foreign workers. Moreover the Union wants to ensure that the workers have the rights to get their family members to join them in the foreign country.
In March 2012, in middle of the French presidential campaign, which is shaped by discussions of foreign low-wages workers, the European commission, which is located in Brussels, presented a proposal to reform the EU guidelines for posting of workers.
The most import improvement: In the future, the main contractor and the subcontractor together have to be liable for the payment of the salaries in the European building industry. In Particular this means, if a foreign subcontractor goes in to bankruptcy or just disappears from the scene, the posted workers from this disappearing company have the right to sue the main contractor in the foreign working location for the payment of their either legally or collectively agreed salary. This system is supposed to help to fight against the cheating with regard to wages and duties.
In the picture attached you can see the employment of foreign workers from the accession countries within the EU-15-States 20091
In detail this means, about one million employees are posted to another country within the EU at this time, one out of four employees is posted to the construction area. While Poland, France and Germany are the main countries of origin, Germany, France and Belgium are the main destination countries.