- (a) A tread depth measuring gauge shall be used to measure tread depth. Readings shall be taken in the major tread groove nearest to the center of the tire at 2 points along the circumference of the tire, not closer than 15 inches.
- (b) If a tire has the tread design running across the tire or is a siped tire, readings shall be taken at or near the center of the tire at 2 points along the circumference of the tire, not closer than 15 inches.
- (c) Pursuant to RSA 266:51, a motorcycle shall be rejected if the tread depth is less than 2/32 inch at both points where tread depth measurements were made.
Source. (See Revision Notes at Chapter Heading Saf-C 3200) #8915, eff 6-22-07, EXPIRED: 6-22-15 New. #10886, INTERIM, eff 7-16-15, EXPIRES: 1-12-16; ss by #11016, eff 1-6-16