N.H. Code Admin. R. Saf-C 3110.14
After an instructor has spent 6 consecutive clock hours or class periods engaged in behind-the-wheel instruction, a minimum of ½ hour shall lapse before resuming instruction.
Source. #9568, eff 10-17-09 (from Saf-C 3113.14); ss by #12509, eff 4-5-18 (formerly Saf-C 3114.16) (See Revision Note at chapter heading for Saf-C 3100)