ABSTRACT
The text presents the tests realized in the field of the acoustic transmission of the earth architecture, within a larger project in which multiple standardized assays of different types were carried out on samples from two different origins of the region and the need for a regulatory regulation for professionals in the sector was questioned. In addition to the scientific results obtained and presented here, it is important to highlight the problems experienced in carrying out the tests. On the one hand, there was evidenced that standard tests seldom facilitate their use when the element is tested. On the other, it was verified how the administrative processes can become an obstacle for the obtaining of samples in spite of being the earth an abundant material and of easy extraction.
