{"carrier":{"dot_number":"154576","legal_name":"MATHESON MAIL TRANSPORTATION INC","dba_name":"MMT LOGISTICS","entity_type":"AUTHORIZED FOR HIRE;U. S. MAIL","operating_status":"AUTHORIZED FOR HIRE;U. S. MAIL","phy_street":"9785 GOETHE ROAD","phy_city":"SACRAMENTO","phy_state":"CA","phy_zip":"95827","phy_country":"US","phone":"8004557678","mc_number":"MC-1566100","mc_number_2":"","mc_number_3":"","carrier_operation":"A","hm_indicator":"N","power_units":10,"total_drivers":10,"total_cdl":10,"mcs150_mileage":845501,"mcs150_mileage_year":"2022","mcs150_date":"20240124 1801","add_date":"19740601","officer_1":"CHARLES MELLOR","officer_2":"JOSH MATHESON","fleet_size_class":"E","business_type":"CORPORATION","duns_number":"23907874","crash_rate":0,"prior_revoke_flag":"N","prior_revoke_dot":"","cargo_types":"C","source":"census","ingested_at":"2026-05-16 01:36:10","updated_at":"2026-05-16 01:36:10"},"crashes":{"total":14,"fatal":5,"injury":4},"safety_scores":[],"freightproof":{"dot_number":"154576","record_status":"no_vetting_yet","what_this_proves":"FMCSA-sourced carrier data cached by FreightProof. No signed vetting record exists yet; run one to generate a tamper-evident proof-of-checking.","data_hash":null,"vetting_date":null,"verify":null,"run_full_vetting":{"endpoint":"https://freight.rootz.global/mcp","tool":"freight_carrier_vet","arguments":{"dot_number":"154576"},"sealed_evidence_tool":"freight_create_evidence"},"ai_discovery":"https://freight.rootz.global/.well-known/ai","data_source":"FMCSA (Census, Crash, Inspection, Enforcement)","legal_basis":"Montgomery v. Caribe Transport II, LLC, 608 U.S. ___ (2026)"}}