For over 40 years, Dr Verwey’s Tank Cleaning Guide has been the gold standard for cleaning operations on CPP/DPP trade tankers. Trusted by industry professionals worldwide, it provides practical, tried-and-tested guidance on complex cargo transfers and compliance.
Edition 2024
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Developed in close collaboration with experienced chemical tanker operators and cleaning professionals, the guide delivers practical, field-tested solutions backed by international regulations and best practices.
Dr. Verwey’s Tank Cleaning Guide has long been the go-to reference for shipowners, superintendents, and crews planning cargo transitions in line with MARPOL and IBC Code requirements. Covering more than 400 substances and over 180,000 cleaning combinations, the guide offers precise, actionable instructions for even the most complex tank cleaning scenarios.
Available in three flexible formats — hardcover, web-based app, and eBook — the guide supports both onboard operations and shoreside planning.
Hardcover Guide
- 12th Edition (2024)
- 170,000+ cargo combinations
- Anney I & II compliant
- 1 year app licence included
Web & Mobile app
- 180,000+ cargo transitions
- Browser-based, mobile ready
- Includes IBC 2021 updates
- Free trial available
eBook via Witherby Connect
- Online + offline use
- Easy navigation & reading
- Fully up-to-date
- Ideal for digital workflows
| Format | Best for | Key Features |
|---|---|---|
| Book | Bridge officers, students | Physical reference, fast lookups onboard |
| App | Remote offices, crews, planners | Up-to-date, searchable, works across devices |
| eBook | Bridge officers | available in Witherby Connect |