{"carrier":{"dot_number":"698388","legal_name":"CHARLES R MACKAY","dba_name":"MACKAY TRUCKING","entity_type":"EXEMPT FOR HIRE","operating_status":"EXEMPT FOR HIRE","phy_street":"1148 1ST AVENUE NORTH SUITE #3","phy_city":"BILLINGS","phy_state":"MT","phy_zip":"59101","phy_country":"US","phone":"4066527257","mc_number":"MC-327897","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":"20020815 0000","add_date":"19970721","officer_1":"","officer_2":"","fleet_size_class":"A","business_type":"INDIVIDUAL","duns_number":"","crash_rate":0,"prior_revoke_flag":"","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":[]}