Whenever the Massachusetts Bay Transportation Authority operates bus transportation, the authority shall acknowledge the contributions of Rosa Parks to the civil rights movement using a light-emitting diode display or decal in the front left window of the bus, or in a similar manner approved by the authority.
Mass. Gen. Laws ch. 161A, § 51
Display acknowledging the contributions of Rosa Parks to the civil rights movement on buses operated by Massachusetts Bay Transportation Authority
Official source: Massachusetts Legislature. Reproduced from public-domain Massachusetts statutes; confirm against the official source for the current text. Not legal advice.