2021 California Tire Workshop Series and Presenters

Tire Pull Points 35 Federal Motor Carrier Safety Administration Code, Section 393.75 (c), Jan 20, 2020, states “tires shall have a tread groove pattern depth of at least 2/32…” and “DOT steer tire regulations…depth is at least 4/32 of an inch. Optimum pull point for retreading is 6/32 nd . The minimum pull points for Tier-I tires are… steer axle 6/32 nd ; drive Axle(s) 4/32 nd ; trailer axle(s) 4/32 nd . Optimum useful life on “Consumer” Tier - II tires, pull points… steer axle 3/32 nd ; drive axle 3/32 nd. Other considerations… casing repair standards… Maximum 4 repairs, 1 per quadrant; Maximum 1 large section per tire; No section repairs allowed to return to steer or drive position; repair costs should be considered.