Summary: The properties and use of asphalt-rubber materials for various paving and maintenance activities have been well documented in the literature. The majority of this literature reports on properties of asphalt-rubber materials (1-12), and use of asphalt-rubber in stress absorbing membranes (SAM) and interlayers (SAMI) (13-25). Research studies have shown that asphalt-rubber materials have significantly modified physical properties when compared to asphalt cement. These modifications include increased high temperature modulus, viscosity, and toughness; increased elasticity, reduced temperature susceptibility, and less age hardening. In several state and countries abroad, use of asphalt-rubber in SAM and SAMI applications has become routine construction practice for rehabilitating deteriorated pavements and extending overlay life.