WILLIAMS TANK LINES LLC

USDOT 229047 · status active · 6 pass / 1 fail / 2 unknown

What this page is. A rendering of FMCSA public records on a stated date. Not a safety rating, credit score, or recommendation. Source: Company Census File (az4n-8mr2, updated 2026-10-21, sha256 73d4c5901abe8cdb…).

Checks

PASS authority_active
Registration active in the census record.

fields: status_code
UNKNOWN allowed_to_operate
Not queried. Requires the live FMCSA API; the census file does not carry this field. We never default it to pass.

fields: allowed_to_operate
UNKNOWN bipd_on_file
Absence from the gap release is not proof of coverage; the release only lists carriers with no filing. Query the live API to confirm.

fields: bipd_file
PASS mcs150_current
Last MCS-150 filing 2025-04-01.

fields: mcs150_date
PASS contact_complete
Phone and email both on file.

fields: phone, email_address
PASS shared_identifier_suppressed
No suppressed identifier on this record.

fields: phone, phy_street
FAIL no_involuntary_revocation
2 involuntary revocation(s) in the FMCSA history. This is a historical fact, not current status - the carrier may hold valid authority again today. Check the authority check above.

fields: dot_number
PASS out_of_service_order
No out-of-service order in the FMCSA record.

fields: dot_number
PASS authority_age
Registered 1983-02-22 (15949 days ago, ~43.7 years). Context only; new authority is a higher-risk cohort, not a verdict.

fields: add_date

Identity

Legal name	WILLIAMS TANK LINES LLC Company Census File
DBA	WILLIAMS TANK LINES Company Census File
MC number	197435 Company Census File
Registration status	A Company Census File
Operation type	A Company Census File
Registered since	1983-02-22 Company Census File

Contact

Phone	2099445613 Company Census File
Email	claims@williamstankline.com Company Census File
Officer 1	Mark Lill Company Census File
Officer 2	CORRINE LILL Company Census File

Address

Street	1477 TILLIE LEWIS DR Company Census File
City	STOCKTON Company Census File
State	CA Company Census File
ZIP	95206-1130 Company Census File
Country	US Company Census File

Fleet (self-reported on MCS-150)

Truck units	161 Company Census File
Power units	336 Company Census File
Drivers	347 Company Census File
CDL drivers	258 Company Census File
Intrastate drivers	67 Company Census File
Last MCS-150 filing	2025-04-01 Company Census File

Related carriers

No other active carrier shares this carrier's officer and address in the public record.

Safety history

Counts from FMCSA inspection and crash records, all history on file. Not a safety rating; FMCSA assigns ratings only after an on-site review.

Inspections	1102 driver 34 · vehicle 680
Out-of-service	116 (10.5% of inspections) driver 2 · vehicle 114
Violations	642
Inspection span	2023-10-22 – 2026-10-19
Crashes	289 fatal 14 · injury 100 · tow-away 280
Crash span	1991-01-07 – 2026-07-19

Rulebook v1 · JSON