Connecticut General Statutes Title 53A. Penal Code § 53a-213b. Smoking, otherwise inhaling or ingesting cannabis as a passenger in a motor vehicle: Class D misdemeanor

(a) A person is guilty of smoking or otherwise inhaling or ingesting cannabis, as defined in section 21a-420, in a motor vehicle when he or she smokes or otherwise inhales or ingests cannabis in a motor vehicle that is being operated by another person upon a public highway of this state or upon any road of any specially chartered municipal association or of any district organized under the provisions of chapter 105,  1 a purpose of which is the construction and maintenance of roads and sidewalks, or in any parking area for ten cars or more, or upon any private road on which a speed limit has been established in accordance with the provisions of section 14-218a or upon any school property. No person shall be convicted of smoking or otherwise inhaling or ingesting cannabis as a passenger in a motor vehicle and possessing or having under such person's control a controlled substance upon the same transaction, but such person may be charged and prosecuted for both offenses upon the same information.

(b) Smoking or otherwise inhaling or ingesting cannabis in a motor vehicle is a class D misdemeanor.

(c) No peace officer shall stop a motor vehicle for a violation of this section if such violation is the sole reason for such stop.