{"carrier":{"dot_number":"4003545","legal_name":"HEARTLAND TRANSPORTATION LLC","dba_name":"","entity_type":"AUTHORIZED FOR HIRE","operating_status":"AUTHORIZED FOR HIRE","phy_street":"312 GRACE ST","phy_city":"COUNCIL BLFS","phy_state":"IA","phy_zip":"51503","phy_country":"US","phone":"7123261190","mc_number":"MC-1505394","mc_number_2":"","mc_number_3":"","carrier_operation":"A","hm_indicator":"N","power_units":1,"total_drivers":2,"total_cdl":0,"mcs150_mileage":0,"mcs150_mileage_year":"","mcs150_date":"20221231 1244","add_date":"20221228","officer_1":"ANGELA GRACE VARGAS","officer_2":"JESUS JULIAN VARGAS","fleet_size_class":"A","business_type":"","duns_number":"123726181","crash_rate":0,"prior_revoke_flag":"N","prior_revoke_dot":"","cargo_types":"C","source":"census","ingested_at":"2026-05-16 02:05:21","updated_at":"2026-05-16 02:05:21"},"crashes":{"total":0,"fatal":null,"injury":null},"safety_scores":[]}