When is it lawful to drive while a drug has impaired your ability to operate safely?
Correct answer: C – Under no circumstances
Operating while under the influence of a drug that makes safe driving impossible is unlawful in Rhode Island. The statute expressly states that being legally entitled to use the drug is not a defense. A qualifying first drug-related conviction may include a $100–$300 fine, 30–180 days of license suspension, 10–60 hours of community restitution, and imprisonment for up to one year.
Source: R.I. Gen. Laws § 31-27-2(a), (b)(1), (d)(1)(i) — Driving under influence of liquor or drugs


