{"carrier":{"dot_number":"3371033","legal_name":"SYD MARCH CONCRETE CONSTRUCTION","dba_name":"","entity_type":"PRIVATE PROPERTY","operating_status":"PRIVATE PROPERTY","phy_street":"104 LEICESTER ST","phy_city":"N BILLERICA","phy_state":"MA","phy_zip":"01862","phy_country":"US","phone":"9788517200","mc_number":"FF-36192","mc_number_2":"","mc_number_3":"","carrier_operation":"C","hm_indicator":"N","power_units":2,"total_drivers":1,"total_cdl":0,"mcs150_mileage":500,"mcs150_mileage_year":"2021","mcs150_date":"20230308 0608","add_date":"20191217","officer_1":"SYD MARCH","officer_2":"SYD MARCH","fleet_size_class":"B","business_type":"","duns_number":"","crash_rate":0,"prior_revoke_flag":"N","prior_revoke_dot":"","cargo_types":"C","source":"census","ingested_at":"2026-05-16 01:59:18","updated_at":"2026-05-16 01:59:18"},"crashes":{"total":0,"fatal":null,"injury":null},"safety_scores":[],"freightproof":{"dot_number":"3371033","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":"3371033"},"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)"}}