The United States Department of Commerce is a federal entity referenced in the 1935-miami-dade-building-code as the issuer of the “American Lumber Standards.” Specifically, the code adopts the “Simplified Practice Recommendations, R16-29” issued by this department, effective July 1, 1929, as the basis for determining minimum acceptable sizes and allowable working stresses for structural lumber (p. 153). These standards define the grading rules for “Structural Lumber” and “Yard Lumber,” which are critical for building-material-specifications within the code. The department’s standards are used to assign grades and verify the quality of wood used in construction (p. 154).