(c) Except as provided in subdivision (g) of this section, whenever maximum school speed limits have been established on a highway adjacent to a school as authorized in section sixteen hundred twenty, sixteen hundred twenty-two, sixteen hundred thirty, sixteen hundred forty-three or sixteen hundred sixty-two-a, no person shall drive in excess of such maximum school speed limits during:

1. (1) school days at times indicated on the school zone speed limit sign, provided, however, that such times shall be between the hours of seven o'clock A.M. and six o'clock P.M. or alternative times within such hours; or
2. (2) a period when the beacons attached to the school zone speed limit sign are flashing and such sign is equipped with a notice that indicates that the school zone speed limit is in effect when such beacons are flashing, provided, however, that such beacons shall only flash during student activities at the school and up to thirty minutes immediately before and up to thirty minutes immediately after such student activities.

(g)

1. (i) No person who uses a radar or laser detector in a vehicle with a gross vehicle weight rating of more than eighteen thousand pounds, or a commercial motor vehicle with a gross vehicle weight rating of more than ten thousand pounds, shall drive at a speed in excess of fifty-five miles per hour or, if a maximum speed limit other than fifty-five miles per hour as hereinbefore authorized has been established, at a speed in excess of such speed limit. The presence in any such vehicle of either: (1) a radar or laser detector connected to a power source and in an operable condition; or (2) a concealed radar or laser detector where a part of such detector is securely affixed to some part of the vehicle outside of the cab, in a manner which renders the detector not readily observable, is presumptive evidence of its use by any person operating such vehicle. Either such presumption shall be rebutted by any credible and reliable evidence which tends to show that such radar or laser detector was not in use.
2. (ii) The provisions of this section shall not be construed as authorizing the seizure or forfeiture of a radar or laser detector, unless otherwise provided by law.

1. Every person convicted of a violation of subdivision (b) or paragraph one of subdivision (d) of this section shall be punished as follows:

1. (i) Where the court or tribunal records or enters that the speed upon which the conviction was based exceeded the applicable speed limit by not more than ten miles per hour, by a fine of not less than forty-five nor more than one hundred fifty dollars;
2. (ii) Where the court or tribunal records or enters that the speed upon which the conviction was based exceeded the applicable speed limit by more than ten miles per hour but not more than thirty miles per hour, by a fine of not less than ninety nor more than three hundred dollars or by imprisonment for not more than fifteen days or by both such fine and imprisonment;
3. (iii) Where the court or tribunal records or enters that the speed upon which the conviction was based exceeded the applicable speed limit by more than thirty miles per hour, by a fine of not less than one hundred eighty nor more than six hundred dollars, or by imprisonment for not more than thirty days, or by both such fine and imprisonment.

3. Every person convicted of a violation of paragraph two of subdivision (d), subdivision (f) or (g) of this section shall be punished as follows:

1. (i) Where the court or tribunal records or enters that the speed upon which the conviction was based exceeded the applicable speed limit by not more than ten miles per hour, by a fine of not less than ninety nor more than one hundred fifty dollars;
2. (ii) Where the court or tribunal records or enters that the speed upon which the conviction was based exceeded the applicable speed limit by more than ten miles per hour, but not more than thirty miles per hour, by a fine of not less than one hundred eighty nor more than three hundred dollars or by imprisonment for not more than thirty days, or by both such fine and imprisonment, provided, however, that where the vehicle is either (A) in violation of any rules or regulations involving an out-of-service defect relating to brake systems, steering components and/or coupling devices, or (B) transporting flammable gas, radioactive materials or explosives, the fine shall be three hundred dollars or imprisonment for not more than thirty days, or both such fine and imprisonment;
3. (iii) Where the court or tribunal records or enters that the speed upon which the conviction was based exceeded the applicable speed limit by more than thirty miles per hour, by a fine of not less than three hundred sixty nor more than six hundred dollars or by imprisonment for not more than thirty days or by both such fine and imprisonment, provided, however, that where the vehicle is either (A) in violation of any rules or regulations involving an out-of-service defect relating to brake systems, steering components and/or coupling devices, or (B) transporting flammable gas, radioactive materials or explosives, the fine shall be six hundred dollars or imprisonment for not more than thirty days, or both such fine and imprisonment.

4. Every person convicted of a violation of subdivision (c) of this section when such violation occurs in a school speed zone during a school day between the hours of seven o'clock A.M. and six o'clock P.M., shall be punished as follows:

1. (i) Where the court or tribunal records or enters that the speed upon which the conviction was based exceeded the applicable speed limit by not more than ten miles per hour, by a fine of not less than ninety nor more than three hundred dollars;
2. (ii) Where the court or tribunal records or enters that the speed upon which the conviction was based exceeded the applicable speed limit by more than ten miles per hour but not more than thirty miles per hour, by a fine of not less than one hundred eighty nor more than six hundred dollars or by imprisonment for not more than fifteen days or by both such fine and imprisonment;
3. (iii) Where the court or tribunal records or enters that the speed upon which the conviction was based exceeded the applicable speed limit by more than thirty miles per hour, by a fine of not less than three hundred sixty nor more than one thousand two hundred dollars, or by imprisonment for not more than thirty days, or by both such fine and imprisonment.