Here’s what AI has to say:
DOT-marked tyres (US standard) can pass the UK IVA test if they meet specific, rigorous safety requirements, primarily by having clearly visible speed/load ratings and conforming to ECE regulations. While not inherently approved, they are accepted if they provide equivalent performance to European E-marked tyres regarding tread depth (min 1.6mm), construction, and safety standards.
How to Pass IVA with DOT Tyres:
Provide Evidence: You may need documentation from the manufacturer demonstrating the tyre complies with ECE Regulations, even if the ‘E’ mark isn’t physically on the tyre.
Visible Markings: All tyres must clearly display their speed rating, load index, and size, matching the vehicle’s design speed.
Physical Inspection: Tyres must be in perfect condition—no cuts, bulges, or damage—and maintain the legal minimum tread depth of 1.6mm across the central 75% of the tread.
Safety Compliance: Ensure the tread pattern is suitable for safe road use, as some specialized DOT race tyres may be flagged for lack of water drainage.
If the inspector is satisfied the tyre is suitable for road use and meets equivalent safety standards, it will pass.*
I can see my problem here. The tyres I am looking at are very lacking in the tread department and would probably fail the tread pattern test under the Safety Compliance section 