HIGHWAY MAIL COMPANY

USDOT 304808 • 18555 Y AVENUE, GRANGER, IA, 50109-0577

ACTIVEMotor Carrier

Authority:1 active

Insurance:1 current

BOC-3:On file

Safety Rating:S

MCS-150:Never updated

OOS Orders:None

Overview

Company profile from FMCSA Census File

USDOT

304,808

Status

ACTIVE

Entity Type

Corporation

Operation

Interstate

Business Type

Motor Carrier

State

Iowa

Phone

5152383341

[email protected]

Power Units (MCS-150)

Drivers (MCS-150)

Safety Rating

MCS-150 Mileage

2,194,000

BOC-3 Agent

INTERSTATE AUTHORITY LLC

Physical Address

18555 Y AVENUE, GRANGER, IA, 50109-0577

Mailing Address

PO BOX 577, GRANGER, IA, 50109-0577

Contact

Phone: 5152383341

Email: [email protected]

Authority & Insurance

Operating authority, insurance filings, and BOC-3 status

Contract Carrier — Active

Active Authority

Revoked / Inactive

Authority Types

Insurance Policies

1 active

Latest: Jan 1, 2011

BOC-3 Filing

On file

Operating Authority

fmcsa-authhistApr 5, 2026

Operating Authority
Authority Type	Docket #	Status	Original Date	Final Date
Contract Carrier	MC-620731	ACTIVE	Unknown	Unknown

Active Insurance (1)

fmcsa-insurApr 5, 2026

Active Insurance (1)
Insurer	Type	Policy #	Status	Effective	Cancel Date
ZURICH AMERICAN INSURANCE COMPANY	BIPD/Primary	BAP3730841	ON FILE	Jan 1, 2011	Jan 1, 2011

Insurance History (2 canceled/expired)

fmcsa-inshist-allwithhistory

Insurance History (2 canceled/expired)
Insurer	Type	Policy #	Status	Effective	Cancel Date
ZURICH AMERICAN INSURANCE COMPANY	BIPD/Primary	BAP3730841	REPLACED	Jan 1, 2008	Jan 1, 2011
ZURICH AMERICAN INSURANCE COMPANY	BIPD/Primary	BAP3730841	REPLACED	Jan 1, 2007	Jan 1, 2008

Insurance Events Timeline

fmcsa-insur-hist

Insurance Events Timeline
Event	Insurer	Policy #	Type	Event Date	Cancel Date
TERM/REPL	ZURICH AMERICAN INSURANCE COMPANY	BAP3730841	BIPD/Primary	Jan 1, 2011	Jan 1, 2011
TERM/REPL	ZURICH AMERICAN INSURANCE COMPANY	BAP3730841	BIPD/Primary	Jan 1, 2011	Jan 1, 2011
TERM/REPL	ZURICH AMERICAN INSURANCE COMPANY	BAP3730841	BIPD/Primary	Jan 1, 2008	Jan 1, 2008

Authority Action History (1 events)

fmcsa-authhist-blob

Authority Action History (1 events)
Docket	Authority Type	Original Action	Served Date	Disposition	Decided Date
MC620731	MOTOR PROPERTY CONTRACT CARRIER	GRANTED	Oct 15, 2007	—	Unknown

Safety & Inspections

SMS BASIC scores, inspection history, and out-of-service rates

SMS BASIC Scores

Driver Fitness

N/A

Unsafe Driving

64%

Higher percentile = worse safety performance relative to peers. Scores at or above 75% trigger FMCSA alerts.

Inspections

Violations

8 OOS

Vehicle OOS %

11.5%

Driver OOS %

1.9%

Power Units (MCS-150)

Drivers (MCS-150)

Crash Records

Inspection Activity (24 months)

Monthly inspection counts with OOS months highlighted. Hover bars for details.

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Jan

Feb

Mar

Apr

Clean monthMonth with OOSBased on latest 52 of 52 inspection records

Inspection Activity Map

13 states • 52 inspections

None Low Medium High🚛 Home base

Violation Summary (70 violations from 52 inspections)

fmcsa-inspection-file

Violation Summary (70 violations from 52 inspections)
Code	Description	# Violations	# OOS	Severity Wt	BASIC
FMCSR:392.2	Operating a CMV while ill or fatigued	9	0	8	Unsafe Driving
FMCSR:395.8(a)	Failing to keep RODS	4	0	7	Hours Of Service
FMCSR:393.48(a)	Inoperative/defective brakes	4	0	8	Vehicle Maintenance
FMCSR:395.3A1-HOSPD	HOS (Property) - Driving more than 11 hours following 10 consecutive hours off duty during the current 8 consecutive day period. Date and Time	3	0	—	Hours Of Service
FMCSR:392.16	Failing to use seat belt (49 CFR)	3	0	3	Unsafe Driving
FMCSR:392.2-SLLTL	Operating a CMV while ill or fatigued	3	0	8	Unsafe Driving
FMCSR:392.2RG	Operating a CMV while ill or fatigued	2	0	8	Unsafe Driving
FMCSR:392.2-SLLS2	Speeding 6-10 mph over limit	2	0	5	Unsafe Driving
FMCSR:395.3A2-HOSPD	HOS (Property) - Driving beyond the 14 hour after coming on duty following 10 consecutive hours off duty during the current 8 consecutive day period. Date and Tim	2	0	—	Hours Of Service
FMCSR:393.75A3-TAOL	Tires - All others leaking or inflation less than 50% of the maximum inflation pressure on tire not equipped with ATIS	2	2	—	Vehicle Maintenance
FMCSR:392.2C	Operating a CMV while ill or fatigued	2	0	8	Unsafe Driving
FMCSR:395.24(c)(2)(iii)	Driver failed to manually add shipping document number	2	0	—	Hours Of Service
FMCSR:395.30(b)(1)	Driver failed to certify the accuracy of the information gathered by the ELD	2	0	—	Hours Of Service
FMCSR:393.75(a)(3)	Tire-flat and/or audible air leak	2	2	—	Vehicle Maintenance
FMCSR:391.41APC	Medical (Certificate) - Operating a property-carrying vehicle without a valid medical certificate in possession or on file with the state drivers licensing agency	1	1	—	Driver Fitness
FMCSR:395.24	HOS (ELD) - ELD Form and Manner	1	0	—	Hours Of Service
FMCSR:392.2-SLLS4	Speeding 15+ mph over limit	1	0	10	Unsafe Driving
FMCSR:392.2-SLLEWA1	Operating a CMV while ill or fatigued	1	0	8	Unsafe Driving
FMCSR:392.2-SLLEWG1	Operating a CMV while ill or fatigued	1	0	8	Unsafe Driving
FMCSR:392.2-SLLS1	Speeding 1-5 mph over limit	1	0	3	Unsafe Driving
FMCSR:392.2LC	Operating a CMV while ill or fatigued	1	0	8	Unsafe Driving
FMCSR:392.82A1	Texting while driving	1	0	10	Unsafe Driving
FMCSR:392.2MI	Operating a CMV while ill or fatigued	1	0	8	Unsafe Driving
FMCSR:395.30B1	Driver failed to certify the accuracy of the information gathered by the ELD	1	0	—	Hours Of Service
FMCSR:393.60C	Glazing/window obstructions	1	0	4	Vehicle Maintenance
FMCSR:392.2WC	Operating a CMV while ill or fatigued	1	0	8	Unsafe Driving
FMCSR:395.3A3-HOSPRNP	Driving beyond 11 hour driving limit in a 14-hour period. (Property carrying vehicle) - Nominal Violation	1	0	—	Hours Of Service
FMCSR:392.2-SLLEWA2	Operating a CMV while ill or fatigued	1	0	8	Unsafe Driving
FMCSR:392.2-SLL	Operating a CMV while ill or fatigued	1	0	8	Unsafe Driving
FMCSR:392.16-D	Failing to use seat belt (49 CFR)	1	0	3	Unsafe Driving
FMCSR:393.45B2PC	Brake tubing/hoses inadequate	1	0	7	Vehicle Maintenance
FMCSR:395.8	Record of Duty Status violation (general/form and manner)	1	0	—	Hours Of Service
FMCSR:393.9A-LSLIWR	Inoperable required lamps	1	1	3	Vehicle Maintenance
FMCSR:392.2-SLLEQP	Operating a CMV while ill or fatigued	1	0	8	Unsafe Driving
FMCSR:395.24(c)(2)(ii)	Driver failed to manually add the trailer number	1	0	—	Hours Of Service
FMCSR:395.8(e)(1)	395.8(e)(1)	1	0	—	Hours Of Service
FMCSR:396.3(a)(1)	Inspection/repair/maintenance - general	1	1	5	Vehicle Maintenance
FMCSR:393.47(e)	Slack adjuster defective	1	0	7	Vehicle Maintenance
FMCSR:393.53(b)	Steering system components worn	1	0	7	Vehicle Maintenance
FMCSR:393.45(d)	Brake tubing/hoses inadequate	1	1	7	Vehicle Maintenance
FMCSR:393.55D2-B	Coupling device/towing methods defective	1	0	8	Vehicle Maintenance
FMCSR:393.45D-B	Brake tubing/hoses inadequate	1	0	7	Vehicle Maintenance

Peer Context

This carrier vs national averages. Lower is better for all metrics.

Vehicle OOS Rate

11.5%vs nat'l 23.4%

-11.9 pts below avg

Driver OOS Rate

1.9%vs nat'l 6.7%

-4.8 pts below avg

Violations / Inspection

1.35vs nat'l 1.80

-0.45 below avg

National averages: vehicle OOS 23.4%, driver OOS 6.7%, violations per inspection ~1.8. Based on FMCSA MCSAP program data.

Inspection History (52 inspections)

Showing 50 of 52

fmcsa-inspectionsApr 5, 2026

Inspection History (52 inspections)
Date	Report #	Station	State	Level	Vehicle	Violations	Top Codes	OOS
Mar 10, 2026	87306631	ETNA GREEN IN	IN	Level 3	KENWORTH TRUCK TRACTOR	3	391.41APC, 395.24, 392.2-SLLS4	Yes
Feb 9, 2026	87006320	45 - HWY 218 NB MM 29 PILOT GR	IA	Level 3	VANR SEMI-TRAILER	3	392.2-SLLEWA1, 392.2-SLLEWG1, 392.2RG	No
Jan 29, 2026	86923608	I-80	IL	Level 2	UTIL SEMI-TRAILER	7	392.2-SLLS1, 392.2LC, 392.82A1	No
Jan 27, 2026	86920543	SIOUX FALLS SD	SD	Level 3	KENWORTH TRUCK TRACTOR	0	—	No
Jan 12, 2026	86797292	SPARTA WI	WI	Level 3	KENWORTH TRUCK TRACTOR	0	—	No
Nov 26, 2025	86443441	EB U50 MP 272	KS	Level 2	UTIL SEMI-TRAILER	1	392.2-SLLS2	No
Nov 7, 2025	86289508	AUSTIN IN	IN	Level 3	UTILITY TR SEMI-TRAILER	2	392.2-SLLS2, 395.3A3-HOSPRNP	No
Oct 27, 2025	86217446	CLARKS GROVE MN	MN	Level 3	KENWORTH TRUCK TRACTOR	6	395.3A1-HOSPD, 395.3A2-HOSPD, 392.2-SLLEWA2	No
Oct 7, 2025	85991850	Roadside	IA	Level 3	KW TRUCK TRACTOR	1	392.16	No
Sep 30, 2025	85917501	COLBERT SCALES ON US69	OK	Level 3	KW TRUCK TRACTOR	0	—	No
Sep 29, 2025	85952066	I-90	IL	Level 3	KW TRUCK TRACTOR	0	—	No
Sep 15, 2025	85788093	JEFFERSON SD	SD	Level 3	KENWORTH TRUCK TRACTOR	0	—	No
Aug 22, 2025	85575770	FORT MORGAN CO	CO	Level 3	KENWORTH TRUCK TRACTOR	0	—	No
Jul 31, 2025	85382979	HWY 3 EB	IA	Level 3	KW TRUCK TRACTOR	1	392.16	No
Jul 30, 2025	85368800	SIOUX FALLS SD	SD	Level 3	VANGUARD SEMI-TRAILER	1	392.2-SLLTL	No
Jun 20, 2025	85019156	10 - I35 NB MM 30 OSCEOLA	IA	Level 2	UTIL SEMI-TRAILER	1	393.75A3-TAOL	Yes
May 30, 2025	84833227	Roadside	IL	Level 3	KW TRUCK TRACTOR	0	—	No
May 27, 2025	84787181	Roadside	NE	Level 3	UTIL SEMI-TRAILER	2	392.2-SLL, 392.16-D	No
Apr 25, 2025	84503143	39 - I35 SB MM 212 NORTHWOOD	IA	Level 2	INTL STRAIGHT TRUCK	1	392.2C	No
Mar 21, 2025	84208056	02 - I80 EB MM 115 VAN METER	IA	Level 2	KW TRUCK TRACTOR	2	392.2RG, 393.45B2PC	No
Mar 11, 2025	84105290	HWY 69	IA	Level 3	KW TRUCK TRACTOR	2	392.16, 395.8	No
Feb 28, 2025	84014718	I-35 SB	IA	Level 2	KW TRUCK TRACTOR	1	393.9A-LSLIWR	Yes
Feb 17, 2025	83890085	JEFFERSON SD	SD	Level 3	KENWORTH TRUCK TRACTOR	0	—	No
Feb 10, 2025	83856157	HURON SD	SD	Level 3	KENWORTH TRUCK TRACTOR	1	392.2-SLLEQP	No
Jan 3, 2025	83533015	HURON SD	SD	Level 3	KENWORTH TRUCK TRACTOR	2	392.2-SLLTL	No
Jan 3, 2025	83537942	10 - I35 NB MM 30 OSCEOLA	IA	Level 3	KW TRUCK TRACTOR	0	—	No
Dec 19, 2024	83449912	I64	IL	Level 3	GDAN SEMI-TRAILER	0	—	No
Dec 7, 2024	83355266	CHEYENNE I80 PORT OF ENTRY	WY	Level 1	KW TRUCK TRACTOR	1	393.75A3-TAOL	Yes
Nov 13, 2024	83169301	ON ALLEN RD AT ITS INTERSECTIO	PA	Level 3	KW TRUCK TRACTOR	1	392.2C	No
Nov 9, 2024	83129464	HURON SD	SD	Level 3	KENWORTH TRUCK TRACTOR	0	—	No
Sep 18, 2024	82705113	02 - I80 EB MM 115 VAN METER	IA	Level 3	KW TRUCK TRACTOR	1	392.2	No
Sep 15, 2024	82670372	I-80	IL	Level 3	UTIL SEMI-TRAILER	1	392.2	No
Jul 18, 2024	82159795	SIOUX FALLS SD	SD	Level 3	KENWORTH TRUCK TRACTOR	2	392.2	No
Jun 25, 2024	81957657	VALLEY SPRINGS SD	SD	Level 3	HYUNDAI TR SEMI-TRAILER	0	—	No
Jun 2, 2024	81820519	GARY IN	IN	Level 3	KENWORTH M TRUCK TRACTOR	5	395.8(a), 392.2	No
May 30, 2024	81757751	Roadside	IA	Level 3	KW TRUCK TRACTOR	5	392.2, 395.24(c)(2)(ii), 395.24(c)(2)(iii)	No
May 22, 2024	81703841	COLBERT SCALES ON US69	OK	Level 1	UTIL SEMI-TRAILER	8	393.48(a), 396.3(a)(1), 393.47(e)	Yes
Apr 11, 2024	81334050	HURON SD	SD	Level 3	WABASH NAT SEMI-TRAILER	0	—	No
Mar 29, 2024	81253569	SIOUX FALLS SD	SD	Level 3	VAN GUARD SEMI-TRAILER	0	—	No
Mar 6, 2024	81035423	SIOUX FALLS SD	SD	Level 3	UNPUBLISHE SEMI-TRAILER	0	—	No
Feb 7, 2024	80797898	BERESFORD SD	SD	Level 3	KENWORTH TRUCK TRACTOR	0	—	No
Feb 3, 2024	80779339	Roadside	IA	Level 3	KW TRUCK TRACTOR	1	392.2	No
Jan 8, 2024	80573720	FORT MORGAN CO	CO	Level 2	UNKNOWN SEMI-TRAILER	0	—	No
Dec 23, 2023	80472861	HURON SD	SD	Level 3	KENWORTH TRUCK TRACTOR	0	—	No
Dec 13, 2023	80448994	02 - I80 EB MM 115 VAN METER	IA	Level 2	KW TRUCK TRACTOR	0	—	No
Dec 12, 2023	80364234	WOONSOCKET SD	SD	Level 3	KENWORTH TRUCK TRACTOR	0	—	No
Sep 21, 2023	79742269	Roadside	IA	Level 3	UTIL SEMI-TRAILER	3	392.2, 395.30(b)(1), 395.24(c)(2)(iii)	No
Sep 9, 2023	79625621	HARRISONVILLEMO	MO	Level 2	KENWORTH TRUCK TRACTOR	2	393.55D2-B, 393.45D-B	No
Aug 14, 2023	79400551	JEFFERSON PORT OF ENTRY	SD	Level 3	KW TRUCK TRACTOR	1	392.2	No
Aug 2, 2023	79308747	Roadside	SD	Level 3	VANR SEMI-TRAILER	0	—	No

View all 52 records

View all 52 inspections →

Inspection analytics

Monthly cadence, frequent stations, and violation mix

Inspections per month (24 mo)

37 total · 13.5% OOS

2024-052026-03

InspectionsOOS

Most frequent inspection stations

SIOUX FALLS SD5

HURON SD5

JEFFERSON PORT OF ENTRY3 · 2 OOS

02 - I80 EB MM 115 VAN METER3

10 - I35 NB MM 30 OSCEOLA2 · 1 OOS

FORT MORGAN CO2

I-802

COLBERT SCALES ON US692 · 1 OOS

Violations by BASIC category

Unsafe Driving33

Hours of Service19

Vehicle Maintenance17 · 7 OOS

Driver Fitness1 · 1 OOS

Recent Crashes

23 crash records from FMCSA Crash File

Total Crashes

Fatalities

Fatal crashes on record

Injuries

Across 6 crashes

Tow-Aways

Crash History (23 records)

fmcsa-crash-fileApr 5, 2026

Crash History (23 records)
Date	State	Severity	Fatalities	Injuries	City	Location	VIN	Carrier Name at Crash
Mar 20, 2025	IA	TOW	0	0	—	I 29 N	...242633	HIGHWAY MAIL COMPANY
Jan 5, 2025	MO	INJURY	0	1	NON-CITY OR UNINCORPORATE	IS 35	...129182	HIGHWAY MAIL COMPANY
Jan 11, 2024	IA	INJURY	0	1	—	US 34 E MM225 EB	...242632	HIGHWAY MAIL COMPANY
Sep 21, 2023	IA	TOW	0	0	—	I 80 W MM 192	...491974	HIGHWAY MAIL COMPANY
Jun 21, 2023	IN	TOW	0	0	HAMMOND	80	...151125	HIGHWAY MAIL COMPANY
Dec 10, 2021	SD	TOW	0	0	RURAL	I 29 N	...471766	HIGHWAY MAIL COMPANY
Mar 28, 2020	PA	TOW	0	0	—	—	—	—
May 28, 2017	SD	FATAL	1	0	—	—	—	—
May 16, 2017	IA	TOW	0	0	—	—	—	—
Apr 5, 2016	UT	TOW	0	0	—	—	—	—
Jan 16, 2014	IA	TOW	0	0	—	—	—	—
Oct 9, 2013	IA	TOW	0	0	—	—	—	—
Sep 1, 2012	IL	TOW	0	0	—	—	—	—
May 30, 2012	IA	TOW	0	0	—	—	—	—
Apr 6, 2012	NY	INJURY	0	1	—	—	—	—
May 17, 2010	IA	TOW	0	0	—	—	—	—
Feb 20, 2010	IA	TOW	0	0	—	—	—	—
Jan 13, 2010	IN	TOW	0	0	—	—	—	—
Jan 7, 2010	IA	TOW	0	0	—	—	—	—
Jan 17, 2008	IA	TOW	0	0	—	—	—	—
Feb 3, 2003	IA	INJURY	0	1	—	—	—	—
Aug 4, 2001	SD	INJURY	0	1	—	—	—	—
Jul 1, 1998	IA	INJURY	0	1	—	—	—	—