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331.15 HAND AND ARM SIGNALS.
(a) Except as provided in subsection (b) hereof, all signals required by this Traffic Code, when given by hand and arm shall be given from the left side of the vehicle in the following manner, and such signals shall indicate as follows:
(1) Left turn: Hand and arm extended horizontally;
(2) Right turn: Hand and arm extended upward;
(3) Stop or decrease speed: Hand and arm extended downward.
(b) As an alternative to subsection (a)(2) hereof, a person operating a bicycle or electric bicycle may give a right turn signal by extending the right hand and arm horizontally and to the right side of the bicycle or electric bicycle.
(c) Except as otherwise provided in this subsection, whoever violates this section is guilty of a minor misdemeanor. If, within one year of the offense, the offender previously has been convicted of or pleaded guilty to one predicate motor vehicle or traffic offense, whoever violates this section is guilty of a misdemeanor of the fourth degree. If, within one year of the offense, the offender previously has been convicted of two or more predicate motor vehicle or traffic offenses, whoever violates this section is guilty of a misdemeanor of the third degree.
If the offender commits the offense while distracted and the distracting activity is a contributing factor to the commission of the offense, the offender is subject to the additional fine established under Section 303.991 of the Traffic Code.