All correspondence must be made through the Vendor Portal. Specifications include, but are not limited to: The Contractor shall employ only one (1) pavement marking scheme per contract unless otherwise directed by the Engineer. A pavement marking scheme consists of one particular binder, bead/ceramic type(s), application rate and associated tolerances as specified by the manufacturer. There shall be no materials testing associated with the warranted pavement marking scheme, but the binder and bead/ceramic type, application rate and all other particulars shall be provided to the Engineer at the Pre-Construction Conference. The Department will be responsible for coding and spotting where old markings cannot be determined or if the Department desires to make changes in existing markings. Where existing markings cannot be determined by the Contractor, the Division shall be given notification seven (7) days prior to commencement of work for the Division to perform any necessary coding and spotting for these areas.