Ontario's demerit-point schedule prices "failing to obey a stop sign" at 3 points. Does an ordinary regulatory sign — a NO LEFT TURN or ONE WAY sign, say — carry the same 3 points if you disobey it?

Correct answer: D. No — an ordinary regulatory sign carries 2 points, one tier below a stop sign, traffic light, or railway signal

No — it's priced lower. The 3-point tier specifically names "failing to obey a stop sign, traffic control stop/slow sign, traffic light or railway crossing signal"; a separate, more general line reading simply "failing to obey signs" sits in the 2-point tier instead, alongside an improper turn or backing on a highway. The schedule treats a stop sign, a traffic light, and a railway crossing signal as a category of their own — each one governs whether or when it's safe to enter a conflict point with other traffic — and prices disobeying them a tier above disobeying an ordinary regulatory sign.

Source: MTO Driver's Handbook: Understanding demerit points — failing to obey signs (2 points), contrasted with failing to obey a stop sign / traffic control stop-slow sign / traffic light / railway crossing signal (3 points)