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ISO Tank Inspection & Recertification

Stay compliant. Stay moving.

Tank containers are required to undergo regulatory periodic inspection and testing to remain in service — and an out-of-date tank is a tank that can’t ship. Our team performs the testing, documentation, and recertification your fleet needs, with technical controls and collaboration with Class Societies that keep your tanks moving safely worldwide.
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2.5 / 5
yr periodic inspection cycle
R-Stamp
National Board accredited
100+
Years combined experience
What we inspect

Full-scope testing and documentation.

We test every system that keeps your tank safe and compliant — and provide the paperwork your fleet, your customers, and the regulators require.
01
Periodic 2.5-Year InspectionsVisual inspection, leak testing, and documentation per DOT and UN intervals.
02
Periodic 5-Year InspectionsFull pressure testing, thickness testing, and recertification.
03
Pressure & Leak TestingHydrostatic and pneumatic testing to verify shell and fitting integrity.
04
Thickness (Ultrasonic) TestingShell and head thickness checks to confirm corrosion allowances.
05
Pressure Relief Device TestingPRV set-pressure verification, testing, and certification.
06
Walkway, Ladder & Safety InspectionStructural checks of handrails, staircases, and fall-protection equipment.
07
Pre-Purchase InspectionsIndependent condition assessments before you buy or lease a tank.
08
Documentation & Compliance ReportingComplete reports for DOT, UN, IMO, and Class Society requirements.
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How it works

From scheduling to certified.

We make recertification simple — schedule the inspection, we do the testing, and you get the documentation your tank needs to keep operating.
01

Schedule

Tell us your tank’s history, last inspection date, and what’s coming due.
02

Inspect & Test

Our technicians perform the required visual, pressure, thickness, and PRV testing.
03

Document

Findings are recorded and any required repairs are scoped and quoted.
04

Certify & Return

Recertification documentation is issued and the tank is returned to service.
Who needs this

Recertification doesn’t wait.

If any of these apply to your fleet, it’s time to schedule inspection and testing.

2.5 / 5-Year Deadlines Approaching

Periodic inspection dates coming due across your fleet.

Pre-Purchase Buyers

Independent condition checks before you buy or lease a tank.

Lessors Prepping Returns

Documentation needed before a tank goes back to its owner.

Post-Incident Tanks

Tanks involved in an accident or overpressure event.

Fleet Compliance Audits

Bringing fleet-wide documentation up to date.
Request a quote

Tell us about your tank.

Send a few details and we’ll come back within one business day with a scope, timeline and price. For urgent repairs and refurbishment, call us directly — we keep parts on hand.
+1 281-542-6800
Mon–Fri, 7am–6pm CT
sales@customtank.com
Typical response within 1 business day
14510 Beaumont Highway
Houston, TX 77049 USA

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