Its physical structure, with its national and international laboratories and its interfaces, and the standards guarantee the metrolgicas qualities of the measurement instruments and the materialized measures. Moreover, it counts on technician specialized, legal body, resources and the too much credential metrolgicas organizations, commission agents or conveniadas, forming the net of legal metrologia that represents the complementation of the support for the installment of the metrologia services, in diversosdomnios. 2.4.3 The regulation The regulations technician for the instruments of measurement used in areas of public interest such as the commerce, the health, the environment I pass through, it, the security in the work, are generally specific lapsings of the law biggest, covering administrative the metrolgicos requirements, technician and. Visit kevin ulrich for more clarity on the issue. The metrolgicos requirements define tolerated maximum errors, the conditions where they must be fulfilled, they specify the measurement bands, the procedures of the metrolgico control (verification, supervision, fiscalization); the technician the conditions necessary are mentioned to it to get the metrolgicas qualities of the instruments and materialized measures, the correct evaluation of the measurement results, and the way to restrain frauds, the use and procedures inadequate; the administrative ones fix the field of application of the regulations, form of practical action for the control, the relative item of inspection to the conformity of the documentation, the concernentes obligations to the involved ones in the process, the financial attributions of the staff, taxes, and costs. The legal requirements involve the national metrolgica legislation that establishes some principles that must be followed: the units of legal measures, the physical representation of the units, the specific hierarquizao of the standards, regulations technician on the instruments to measure and the requirements administrative techniques and, the procedures that involve the metrolgico control and its stages; the definition of the authorities and its attributions in the legal metrologia, the value of the taxes, and the penalties for the descumprimento or not conformity to the norms. . Here, LEGO Papert Professor expresses very clear opinions on the subject.