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Tyre fitting is licensed trade activity in every emirate. A fixed workshop holds a trade licence from the local economic department covering tyre repair and sales, plus civil-defence compliance for the premises, since a building full of stacked rubber is a serious fire load. A mobile fitting operation is typically the outreach arm of a licensed workshop, running vans under the same commercial licence. The verification questions are short: what is the licence name and number, which emirate issued it, and does the invoice you receive carry that trading name with a TRN for VAT. A provider who cannot produce an invoice with a tax registration number is operating informally, and you have no recourse when something goes wrong.

A last practical check is behavioural rather than bureaucratic. A competent fitter uses a torque wrench for final tightening rather than hammering the impact gun to maximum, resets or checks the TPMS after the job, sets pressures to the placard on your door jamb rather than a generic number, and tells you unprompted to re-check torque after the first 50 to 100 kilometres. Any one of those habits is a good sign; all four together mean you have found your regular, and same-vendor rebooking exists for exactly that moment.

UAE motor insurance policies require the vehicle to be roadworthy, and tyres are the component insurers examine first after a serious single-vehicle accident. A claim following a highway blowout can be reduced or rejected if the tyres are found to have been beyond the five-year age limit, worn below the legal tread depth, or visibly damaged before the incident. The surveyor's report will record DOT dates as a matter of routine. In other words, running old tyres does not just risk the AED 500 fine; it can put the entire value of an accident claim in question, along with liability for damage to others.

Modification is the second trap. Changing wheel and tyre sizes away from the manufacturer's approved fitments, fitting different sizes front to rear where the maker does not specify it, or deleting run-flats on a car designed around them are all changes an insurer can treat as undeclared modifications. None of this means you can never change anything; it means changes should stay within the approved fitment list in your handbook, and anything beyond it should be declared to the insurer in writing before renewal rather than discovered by a surveyor afterwards.

Failing on tyres is among the most common and most avoidable inspection outcomes, and the timing is always bad: the test happens when registration is expiring, so a fail means buying tyres under deadline pressure at whatever price is nearest. The better sequence is to check your own DOT dates and tread a month before renewal is due, and book replacement or repair calmly through the tamam app, where multiple verified vendors quote against each other in AED ranges and the work happens at your home or office on your schedule rather than in a testing-centre car park.

A tread-depth check needs no tools worth mentioning: the wear bars moulded into the grooves sit at the legal limit, and when the surrounding tread is flush with them, the tyre is finished. Check the inner shoulder as well as the part you can see standing up, because alignment wear hides on the inside edge, and the inner shoulder is precisely where the inspector will look. If you want a number rather than a bar, any fitter carries a tread-depth gauge and will read all four tyres in under a minute; anything approaching two millimetres in a UAE summer is due for planning, not just monitoring, because braking distances in the wet degrade sharply well before the legal limit arrives.