A study by the General Audit Office (AGN, for its acronym in Spanish), made in 2004, found that the National Communications Commission (CNC) performed "neither systematic nor random" checks to confirm that the cell phone companies measure the radiation emitted by their antennas.
The providers were required to carry out such studies and forward them to the CNC, under the Ministry of Planning and Control Authority. But this obligation resulted in the facts that enable companies to accumulate measurements and are available to any eventual request from the CNC, in the absence of predetermined deadlines. While this new version of the responsibilities of the Commission enables it to make trade controls, the AGN discovered that "companies install and / or modify radio stations without permission from the CNC," and also hope to have several antennas installed to perform all the studies at the same time. This, according to the Audit, makes it "impossible to know the ins and outs of the control,” which means that as the CNC also has a system to record additions, deletions, or modifications of antennas operating in the country "it does not actually know how many radio stations are operating," concludes the AGN.
Apart from this, although the possible negative effects of exposure to radiation from the antennas are not proven scientifically, the General Environmental Law (25,675) establishes a principle of prudence to say that companies cannot use the lack of information as reason for postponing measures that prevent harm to the environment.