The execution of the order for one of our key Business Partners services for the benefit of PTC ERA Sp. z o.o. was completed providing. The analyzed enterprise consisted in the expansion of the base transceiver station of a mobile network (assembly of a new sector aerials of DualBand GSM/UMTS) located on an office building roof in Częstochowa execution the following were prepared: the Qualification Assessment (qualification of the project from the perspective of the possible need to obtain a decision on environmental conditions of the approval of the project) and The report on the impact of the base transceiver station on the environment.