SOURCE-LINKED REGULATION GUIDE
UN R64 — Temporary spares and run-flat solutions
Review special tyre equipment according to how it is used on the vehicle.
Explore the scopeWhat does it cover?
UN R64 addresses M1 and N1 vehicles fitted with a temporary-use spare unit, a run-flat tyre or system, or an extended-mobility tyre. Unlike general tyre-product approval, it assesses a vehicle equipped with one of these solutions. The equipment type determines which provisions apply.
Who is it for?
Vehicle tyre and wheel, spare-wheel and vehicle-dynamics teams.
Which subjects are addressed?
- Temporary-use spare unit
- Run-flat tyre or system
- Extended mobility
- M1/N1 vehicle approval
Common question
Does R64 address every ordinary tyre?
No. Its scope concerns vehicles with specified spare or mobility solutions. Ordinary tyre approval and installation are addressed under separate texts.
Source documents and references
Work with this regulation in RegsUP.
Read the text with its edition and sources. Assess available comparisons, relevant dates and question-and-answer features against your work needs.
Discuss access optionsRelated regulations
UN R30 — Tyres for passenger cars and light vehicles
Review the scope of new tyres by vehicle class and intended use.
UN R141 — Tyre pressure monitoring systems
Check TPMS approval against the relevant vehicle category.
UN R142 — Installation of tyres on vehicles
After choosing a tyre, examine how it may be used on the vehicle.