Show GUIDE FOR ROAD E office of public roads and aurill gi makes public defit able standards Is fr prepared by the united states sy lW 4 merit of agriculture of in order to assist tit in I 1 n greater uniformity ia a tile the high mij of the country awl nii to aid the it roads in some stater office of public roads and rural gi of the united states dr ment of agriculture has fornis forms for standard methods of 0 testing mt mata standard forms for reporting lesak tat suits and standard methods of el sap s ling materials the ain ald standards was made desirable tt lil 0 necessity for co fork office lind and the states in the cartle cart lc s ot of tile the federal aid conference esris in by representatives flee of public roads aul and and of a large nuat ilie hi states they are fujil published heda n part apartment ment bulletin Vs NO ka of abet lit 6 ed cd states department of a culm |