is the reprocessing of old asphalt paving and associated materials for reuse as paving. There are three basic methods of recycling: (1) hot mix recycling, a process in which reclaimed asphalt and aggregate materials are combined with new asphalt, recycling agents (petroleum oils), and new aggregate (e.g., crushed stone) in a central plant to produce hot-mix paving mixtures; (2) cold mix recycling, the recombination of reclaimed asphalt and aggregate materials either in place, or at a central plant to produce a cold mix; (3) surface recycling, a process in which the old asphalt pavement surface is heated in place, scarified, remixed with new asphalt or recycling agents as necessary, relaid, and rolled.