The MassDOT Highway Division has standardized a Guide Sign Policy for use on all secondary state highways, and other roads and streets (except for expressways and freeways) within Massachusetts. The purpose of this Policy is to outline the current standards and guidelines for the design and application of these guide signs, designated as D6-, D8-, and G-series.
MassDOT adheres to the principles and standards established in the Manual on Uniform Traffic Control Devices. The design and application of D6, D8, and G- series signs are based on these principles and standards.