{"carrier":{"dot_number":"674979","legal_name":"DUANE R DINGMANN","dba_name":"ROLLING D TRANSPORT","entity_type":"AUTHORIZED FOR HIRE","operating_status":"AUTHORIZED FOR HIRE","phy_street":"425 RAILROAD AVENUE","phy_city":"ALBANY","phy_state":"MN","phy_zip":"56307","phy_country":"US","phone":"3202602821","mc_number":"MC-259782","mc_number_2":"","mc_number_3":"","carrier_operation":"A","hm_indicator":"N","power_units":1,"total_drivers":1,"total_cdl":1,"mcs150_mileage":0,"mcs150_mileage_year":"","mcs150_date":"20050210 0000","add_date":"19970203","officer_1":"DUANE R DINGMANN","officer_2":"ANNA B BATE","fleet_size_class":"A","business_type":"INDIVIDUAL","duns_number":"","crash_rate":0,"prior_revoke_flag":"N","prior_revoke_dot":"","cargo_types":"C","source":"census","ingested_at":"2026-05-16 01:40:14","updated_at":"2026-05-16 01:40:14"},"crashes":{"total":0,"fatal":null,"injury":null},"safety_scores":[]}