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Carrier profile · USDOT 436249 · Data as of Oct 7, 2026

A-1 Insulating Co Inc

Rainbow City, AL · Interstate carrier · Since 1991
No MC authorityNot rated by FMCSANo hazmat
Cargo carriedBuilding MaterialsConstruction
View on FMCSA SAFERCall (256) 546-7575
10
Power units
10
Drivers
2
Inspections · 24 mo
1
Crashes · 24 mo
200K
Annual miles
35 yr
Registered
95
/ 100
Clear to load

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MCS-150 not updated in over 2 years: FMCSA requires a biennial update.

How we scored it · 5 factors
Operating authority20/20
Insurance20/20
Out-of-service rates20/20
Crashes & rating20/20
Continuity & identity15/20

Composite of public FMCSA authority, insurance, inspection and crash records weighted against the national fleet. Decision support, not an official FMCSA safety rating.

Safety

FMCSA inspections & crashes · 24 mo · AS OF OCT 7, 2026
Vehicle out-of-service
—
National 22.26% · 0 of 2 inspections · needs 3+
Driver out-of-service
—
National 6.67% · 0 of 2 inspections · needs 3+
Crashes
1
0 fatal0 injury1 tow-away
Crash rate 2.50 per 1M mi
Total inspections
2
Driver inspections
2
Vehicle inspections
2
People injured
0
Fatalities
0
FMCSA rating
Not rated

Enforcement

FMCSA closed cases

Closed enforcement cases — case numbers, violation codes and the amount settled — are available after you create a free account.

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Authority & insurance

FMCSA L&I · AS OF OCT 7, 2026

No operating authority (MC/FF docket) on file. Private and intrastate carriers don't need one; interstate for-hire carriers and brokers do.

Equipment

SELF-REPORTED ON MCS-150
10
Power units
10
Trucks
—
Tractors owned
—
Trailers owned
10
Drivers
10
CDL drivers
Not registered for hazardous materials.

Operations & cargo

FMCSA CENSUS
InterstatePrivate Property
Cargo carried
Building MaterialsConstruction
Annual mileage
200,000 mi (2022)

Identity & federal record

FMCSA census · MCS-150
USDOT
436249
MC / docket
None
Legal name
A-1 Insulating Co Inc
DBA
—
Entity type
Carrier
Operation
Interstate
First registered
Feb 12, 1991
Last MCS-150
Oct 19, 2023
Safety rating
Not rated
Drivers (CDL)
10 (10)
Hazmat
No
Business type
Corporation

Fraud & network signals

For review, not a verdict.

No prior revocation
FMCSA shows no link to a previously revoked authority.
Unique phone number
Not shared with any other active USDOT.
Unique email address
Not shared with any other active USDOT.
Unique street address
Not shared with any other active USDOT.

Frequently asked

What is A-1 Insulating Co Inc's USDOT number?

A-1 Insulating Co Inc's USDOT number is 436249.

Is A-1 Insulating Co Inc authorized to operate?

It does not hold MC operating authority, which private and intrastate carriers do not need.

What is A-1 Insulating Co Inc's safety record?

Over the last 24 months: 2 roadside inspections, and 1 reportable crash (0 fatal). Not rated by FMCSA.

How big is A-1 Insulating Co Inc's fleet?

10 power units and 10 drivers per its MCS-150 filed Oct 19, 2023.

Where is A-1 Insulating Co Inc located?

A-1 Insulating Co Inc is located at 104 Rainbow Industrial Blvd, Rainbow City, AL, 35906. Phone: (256) 546-7575.

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Source: FMCSA public records via the U.S. DOT Open Data Portal. Carrier Search presents the federal record and computed signals for decision support only. It is not an FMCSA safety rating and not a recommendation to use or avoid any carrier. Verify authority and insurance before tendering.