The engine and power mechanism of every motor vehicle shall be so equipped and adjusted as to prevent the escape of excessive fumes or smoke. Violations of this section are subject to fines enumerated in § 31-41.1-4.
Prevention of excessive fumes or smoke
R.I. Gen. Laws § 31-23-14., under Chapter 31-23 Equipment and Accessories Generally.
R.I. Gen. Laws § 31-23-14.