Member Zone Members Only Insurance Program Committees Operating Committee Guardrail Committee Manufacturers and Suppliers Committee Pavement Marking Committee Safety and Public Awareness Committee Sign Committee Temporary Traffic Control Committee Government Relations Committee SHSP Council Membership Committee ITS Council Expand Your Business Chapters Chapter Network Center Chapter Presidents' Council Chapter Management Manual Illinois Sign Specs Illinois Standard Specifications for Traffic Control and Barricades Illinois Standard Specifications for Guard Rail, Cable Rail, and Fencing Illinois Specifications for Raised Pavement Markers Member Websites Applications Member Benefits Resources Technical Assistance Center (TAC) Interpretation Letters State / National Statistics Useful Links Specification Links to DOT Web sites 2004 Interpretation Letters 2005 Interpretation Letters 2006 Interpretation Letters 2007 Interpretation Letters 2008 Interpretation Letters Pavement Marking Exemption Granted ATSSA Members Fraudulent Letter Alert Illinois Specifications for Pavement Markings