Because corrosion of reinforcement can result in concrete cracking, staining, spalling and costly repairs, corrosion-resistant reinforcement often is the obvious choice for concrete structures exposed to high chloride levels. What isn't so clear-cut is the best type of rebar to use for a particular project. Epoxy-coated, galvanized, glass-fiber-reinforced-polymer, solid stainless steel, and stainless-steel-clad reinforcing bars all are designed to resist corrosion, especially chloride-ion induced corrosion. Before selecting one of these products for your next job, you should consider such factors as initial cost, construction concerns, degree of corrosion resistance, and long-term performance.