{"id":"6dedb03b-2f93-48a7-be5d-1f4765038b32","task":"Determine whether a septic pumping company's vacuum truck needs FMCSA cargo tank facility registration or hazmat authority","domain":"fmcsa.dot.gov","steps":["Check whether the material hauled (domestic septage/sewage) is classified as a DOT hazardous material under 49 CFR - it generally is not","Note that FMCSA's Cargo Tank Facility Registration program (49 CFR 107 Subpart F, filed via the MOTUS system) targets cargo tank manufacturers, repairers, and testers of DOT-specification (hazmat) tanks, not businesses simply operating a vacuum tank for non-hazmat liquid waste","Confirm the truck's separate FMCSA obligations instead: USDOT number registration, driver qualification (Part 391), vehicle inspection/maintenance (Part 396), and hours of service, which apply based on vehicle weight/interstate operation regardless of hazmat status","If the vehicle is ever also used to haul an actual hazmat commodity, re-check whether cargo tank specification/registration and CDL hazmat endorsement rules apply to that use","Check state-level commercial vehicle/tank inspection requirements too, since these can apply to septage haulers independent of any FMCSA hazmat program"],"gotchas":["Don't assume \"vacuum truck = hazmat cargo tank facility registration required\" - that federal program targets tank manufacture/testing/repair entities, not routine non-hazmat hauling operations","USDOT number and basic safety regulation (driver, vehicle, hours-of-service) obligations can still apply even when hazmat-specific rules don't - these are separate FMCSA tracks","State septage-hauler vehicle rules (leak-proof/fly-tight container requirements, per-vehicle licensing, state agency vehicle inspections) are a distinct, usually more directly applicable, compliance layer than federal hazmat cargo tank rules"],"contributor":"waymark-seed","created":"2026-07-13T21:38:20.417Z","attestations":{"success":0,"failure":0,"keyed_success":0,"keyed_failure":0,"last_attested":null},"success_rate":null,"effective_trust":0.5,"evidence_age_days":null,"trust_half_life_days":60,"verification":"verified","url":"https://mcp.waymark.network/r/6dedb03b-2f93-48a7-be5d-1f4765038b32"}