Curran, MI
DOT 1927500MC 8584206 trucks4 drivers
Amber: PRIVATE CARRIER — NOT FOR-HIRE
FMCSA registers this company as a private carrier: it hauls its own goods. Private carriers don't need operating authority (an MC number) and don't file liability insurance with FMCSA, so neither shows here. It can't haul brokered or for-hire freight under this USDOT number.
Authority
Not Needed: Private Carrier
Hauls its own goods, so it needs no MC number. It can't haul brokered or for-hire freight under this number.
Insurance
Not Filed with FMCSA (Private Carrier)
Private carriers don't file liability insurance with FMCSA, so its records can't show it. Ask the company for a certificate of insurance.
Paperwork (MCS-150)
Paperwork Status: Overdue
FMCSA can deactivate the USDOT number and fine up to $1,000 a day (max $10,000).
Safety Rating
Not Checked
Not in this record. Run a live check for FMCSA's current rating.
Is this your company? We file it with you. Or file it yourself free with FMCSA.
From FMCSA's Safety Measurement System files, October 2024 to October 2026. Crash counts include crashes the carrier didn't cause. Out-of-service rates use only inspections that checked the driver or the vehicle.
Every roadside inspection in FMCSA's file for USDOT #1927500: when, where, and which vehicles (type, make, VIN) the inspector recorded.
THC compares FMCSA's files every night and keeps what changed. Tracked since October 30, 2026, last compared November 15, 2026.
Noticed by THC November 14, 2026 (changed after our November 13, 2026 copy)
MC number changed
MC 856050 → MC 858420
Why it may matter: The MC (docket) number is what brokers and shippers use to check operating authority.
What it doesn't show: Having an MC number does not mean its authority is active.
Next step: Check the authority status for the new MC number.
Source: FMCSA Company Census File (data.transportation.gov).
Noticed by THC November 13, 2026 (changed after our November 12, 2026 copy)
MC number changed
MC 858420 → MC 856050
Why it may matter: The MC (docket) number is what brokers and shippers use to check operating authority.
What it doesn't show: Having an MC number does not mean its authority is active.
Next step: Check the authority status for the new MC number.
Source: FMCSA Company Census File (data.transportation.gov).
Noticed by THC November 11, 2026 (changed after our November 10, 2026 copy)
MC number changed
MC 856050 → MC 858420
Why it may matter: The MC (docket) number is what brokers and shippers use to check operating authority.
What it doesn't show: Having an MC number does not mean its authority is active.
Next step: Check the authority status for the new MC number.
Source: FMCSA Company Census File (data.transportation.gov).
Noticed by THC November 10, 2026 (changed after our November 9, 2026 copy)
MC number changed
MC 858420 → MC 856050
Why it may matter: The MC (docket) number is what brokers and shippers use to check operating authority.
What it doesn't show: Having an MC number does not mean its authority is active.
Next step: Check the authority status for the new MC number.
Source: FMCSA Company Census File (data.transportation.gov).
Noticed by THC November 9, 2026 (changed after our November 8, 2026 copy)
MC number changed
MC 856050 → MC 858420
Why it may matter: The MC (docket) number is what brokers and shippers use to check operating authority.
What it doesn't show: Having an MC number does not mean its authority is active.
Next step: Check the authority status for the new MC number.
Source: FMCSA Company Census File (data.transportation.gov).
Noticed by THC November 8, 2026 (changed after our November 7, 2026 copy)
MC number changed
MC 858420 → MC 856050
Why it may matter: The MC (docket) number is what brokers and shippers use to check operating authority.
What it doesn't show: Having an MC number does not mean its authority is active.
Next step: Check the authority status for the new MC number.
Source: FMCSA Company Census File (data.transportation.gov).
Noticed by THC November 7, 2026 (changed after our November 6, 2026 copy)
MC number changed
MC 856050 → MC 858420
Why it may matter: The MC (docket) number is what brokers and shippers use to check operating authority.
What it doesn't show: Having an MC number does not mean its authority is active.
Next step: Check the authority status for the new MC number.
Source: FMCSA Company Census File (data.transportation.gov).
Noticed by THC November 4, 2026 (changed after our November 3, 2026 copy)
MC number changed
MC 858420 → MC 856050
Why it may matter: The MC (docket) number is what brokers and shippers use to check operating authority.
What it doesn't show: Having an MC number does not mean its authority is active.
Next step: Check the authority status for the new MC number.
Source: FMCSA Company Census File (data.transportation.gov).
Noticed by THC November 2, 2026 (changed after our November 1, 2026 copy)
MC number changed
MC 856050 → MC 858420
Why it may matter: The MC (docket) number is what brokers and shippers use to check operating authority.
What it doesn't show: Having an MC number does not mean its authority is active.
Next step: Check the authority status for the new MC number.
Source: FMCSA Company Census File (data.transportation.gov).
Noticed by THC November 1, 2026 (changed after our October 31, 2026 copy)
MC number changed
MC 858420 → MC 856050
Why it may matter: The MC (docket) number is what brokers and shippers use to check operating authority.
What it doesn't show: Having an MC number does not mean its authority is active.
Next step: Check the authority status for the new MC number.
Source: FMCSA Company Census File (data.transportation.gov).
Dates are when THC noticed the change in FMCSA's files, not when it happened, unless FMCSA's file gives the date. FMCSA's files can lag behind FMCSA's own systems. Check this record on FMCSA SAFER · Daily FMCSA change reports
USDOT 1927500 (Wolverine Insulation LLC) is active as a private carrier: it hauls its own goods, so it doesn't need operating authority. It can't haul brokered or for-hire freight under this number.
Our daily record doesn't include Wolverine Insulation LLC's safety rating. Run a free live check to see FMCSA's current rating. Most carriers are "Not Rated", which is normal: it means FMCSA has never done a full audit.
In FMCSA's safety data for October 2024 to October 2026, Wolverine Insulation LLC had 3 roadside inspections. 33.3% of driver inspections (all carriers: 6.1%) ended out of service. It was in 1 reportable crash (0 fatal, 1 injury, 0 tow-away), counted whoever was at fault.
It looks overdue. FMCSA's records show it was last filed January 2, 2025. FMCSA can deactivate a USDOT number that misses its update and fine up to $1,000 a day (max $10,000). Updating is free with FMCSA.
From public FMCSA records (the Company Census File, FMCSA's daily authority and insurance file and its monthly Safety Measurement System inspection and crash files). Trucking Help Center is not FMCSA and is not affiliated with this company. Records can change daily: run a live check, and confirm every load by calling the phone number on file. Is this your company and something looks wrong? Update your MCS-150 with FMCSA; our copy refreshes nightly.
Amber: PRIVATE CARRIER — NOT FOR-HIRE
FMCSA registers this company as a private carrier: it hauls its own goods. Private carriers don't need operating authority (an MC number) and don't file liability insurance with FMCSA, so neither shows here. It can't haul brokered or for-hire freight under this USDOT number.
Authority
Not Needed: Private Carrier
Hauls its own goods, so it needs no MC number. It can't haul brokered or for-hire freight under this number.
Insurance
Not Filed with FMCSA (Private Carrier)
Private carriers don't file liability insurance with FMCSA, so its records can't show it. Ask the company for a certificate of insurance.
Paperwork (MCS-150)
Paperwork Status: Overdue
FMCSA can deactivate the USDOT number and fine up to $1,000 a day (max $10,000).
Safety Rating
Not Checked
Not in this record. Run a live check for FMCSA's current rating.
Is this your company? We file it with you. Or file it yourself free with FMCSA.
