Section 2 of chapter 90 of the General Laws is hereby amended by inserting after the twentieth paragraph, as appearing in the 2018 Official Edition, the following paragraph:-

The registrar shall furnish without charge to the owner of a private passenger motor vehicle who is a parent, child or spouse of a police officer of a police department of any city or town, the department of state police or the Massachusetts bay transportation authority police department, who has been killed in the line of duty, upon presentation of satisfactory evidence to the registrar, a distinctive registration plate that reads "Blue Star Family" for 1 private passenger motor vehicle owned and principally used by that person or a distinctive "Blue Star Family" emblem to be affixed to a registration plate for a motorcycle privately owned and principally used by that person. The registrar may issue a distinctive "Blue Star Family" registration of up to 6 characters for 1 private passenger motor vehicle owned and principally used by that person. A police officer shall be determined to have been killed in the line of duty for purposes of this paragraph if the circumstance meets those which would make them eligible to be placed on the National Law Enforcement Memorial in Washington D.C.