Section 113B of chapter 175 of the General Laws, as appearing in the 2008 Official Edition, is hereby amended by inserting after the twelfth paragraph the following paragraph:-

Notwithstanding any general or special law to the contrary, any upward premium adjustments resulting from surchargeable incidents, including at-fault accidents, convictions of moving violations of motor vehicle laws, including payments pursuant to chapter 90C and assignments to driver alcohol education programs under the provisions of section 24D of chapter 90 shall be uniform, fixed rates and shall not be based on territories or geographic locations.  Each premium adjustment resulting from surchargeable incidents or for excellent driving shall be be uniform, fixed rates and shall not be based on territories or geographic locations for each level of classification of risk.  The commissioner shall promulgate rules and regulations establishing said uniform and fixed rates which shall not be based on territories or geographic locations for each level of classification of risk. The commissioner shall not establish any premium adjustments resulting from surchargeable incidents or for excellent driving or for each level of classification of risk based on a percentage basis.