The CSWIP 3.1U qualification. Recognised worldwide. Delivered by TWI.

Commercial divers seeking internationally recognised NDT inspection certification train with TWI, the independent research and technology organisation that has been at the forefront of inspection technology since 1946.

• Theoretical instruction to the CSWIP approved syllabus
• General underwater and close visual inspection
• Cathodic protection and ultrasonic digital thickness measurements
• Eligibility to sit the CSWIP 3.1U examination

Operators and asset owners increasingly require verified NDT competence before divers are deployed on inspection contracts. A diving certificate alone is no longer sufficient to access the full range of subsea inspection work available in the offshore and marine sectors.

Without a recognised inspection certification, commercial divers are excluded from a growing segment of high-value subsea inspection work, limiting both earning potential and career progression at a time when demand for qualified inspection personnel continues to rise.

The CSWIP 3.1U is the industry-standard entry qualification, and the credential that opens the door to a structured inspection career, recognised by operators, contractors and asset owners across the global offshore industry.

Explain the principles

Explain the theoretical principles of subsea visual inspection, including the methods, equipment and reporting standards applied in commercial underwater inspection work.

Inspect in practice

Be proficient in practical visual subsea inspection techniques, having completed hands-on training in the inspection methods covered by the CSWIP approved syllabus.

Qualify to examine

Gain eligibility to sit the CSWIP 3.1U examination, the internationally recognised assessment that formally certifies competence in underwater NDT inspection.

You are eligible if

• You hold an approved commercial diving qualification
• You hold an HSE approved, in-date, full commercial diver medical certificate

Good to know

• The course follows CSWIP-DIV-7-95 Part 1, 6th Edition (April 2019), available in full on the CSWIP website
• Verification of entry requirements is requested at the point of booking. The TWI team can provide guidance on eligibility prior to any commitment

Independent authority

TWI Ltd is an independent research and technology organisation, not affiliated with any manufacturer, contractor or operator. Our assessments are impartial, our standards are set without commercial influence, and our certification carries the credibility that comes from genuine independence.

Over 75 years of inspection expertise

TWI has been at the forefront of inspection and non-destructive testing technology since 1946. As the world centre for materials joining technology, TWI brings a depth of technical knowledge that no commercial training provider can replicate.

Globally recognised certification

CSWIP certification is recognised by operators, contractors and asset owners across the oil and gas, marine and offshore industries worldwide. It is the credential the industry trusts, and the qualification that employers and clients specify when commissioning subsea inspection work.

Check that you meet the entry requirements for the course. The TWI team is available to advise on eligibility before you commit to a booking.

Choose a location and a date from the course schedule. The CSWIP 3.1U is delivered at multiple locations. Contact the team for current availability.

Complete training to the CSWIP approved syllabus, including all practical elements and the end-of-course assessment.

Become eligible to sit the CSWIP 3.1U examination and receive your internationally recognised certification.