The safety of electrical installations is not a new theme in Brazil, but it has always been dependent on private initiatives of companies, unions and other stakeholders, with great sacrifice, education encouraged the adoption of serious technical standards from the design, specification and use of materials and correct assembly line.Only those actions were not fully effective, as the voluntary aspect to comply with the Standards has not been enough to guarantee awareness about the importance of the subject.This scenario is suitable for the adoption of the conformity assessment concept applied to products and services, whether or not involving an independent third party, as been done in other countries This work presents the main concepts adopted in the process of conformity assessment in the international arena and its direct correspondence with those defined by Inmetro in Brazil, the situation inside the country to participate directly in this community, both with the recognition of programs and laboratories.In this theme, the work shows the positive results have been achieved in the areas of commodities in general and particularly in electrical products, virtually all of which are subject to Inmetro mandatory certification.It also described the sequence of events and actions taken in Brazil for the diagnosis of the safety level through special programs, the results obtained by different programs, the initial involvement of regulators and end of the activities at the federal level.Concerning additional actions to discuss the issue and to approve process with the competent regulators, the work also shows the municipal and state laws and the Technical Instruction of Fire Department of Military Police of State of São Paulo, which, with its effective implementation will contribute to improve the safety of users of electrical installations, similar to that in over 30 countries worldwide.The work also describes an alternative voluntary model based on the experiences of several countries and that it is being first implemented in the country as an initiative of several market players, with benefits for all actors, electric energy distribution companies, public administration, manufacturers of materials, designers, installers, builders, owners and users.xi