In addition to the 3-Peak Mountain Snowflake Symbol on tires, there is also a Ice Grip symbol. I am not sure if this IceGrip symbol is required in the USA.
DAYTON, Tenn. – For the first time this winter season, the Nokian Tyres Hakkapeliitta 10 and R5 pass...
DAYTON, Tenn. – For the first time this winter season, the Nokian Tyres Hakkapeliitta 10 and R5 passenger, SUV and EV tires will be produced with a new ice grip symbol that indicates they have been subjected to rigorous testing on icy surfaces, according to standards established by the International Organization for Standardization (ISO).
Consumers in North America may start seeing the symbol on their tires’ sidewalls as soon as this winter.
To be eligible for the ice grip marking, the tires’ ice performance was verified through an internationally agreed-upon ice braking test by an accredited independent test laboratory. Tires had to perform at least 18 percent better than a standard reference tire to receive the symbol.