Section 39.03.41.001 - TITLE AND SCOPE01.Title. This rule is titled IDAPA 39.03.41, "Rules Governing Traffic Control Devices," IDAPA 39, Title 03, Chapter 41. (3-31-22)02.Scope. It is the purpose of this rule to establish standards, guidance, options, and supporting information for the design, construction and implementation of traffic control devices. (3-31-22)Idaho Admin. Code r. 39.03.41.001