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This article outlines the regulatory framework, material classifications, and performance standards for noncombustible and ignition-resistant construction in wildfire-prone areas. It compares IBC/IRC definitions with California’s Chapter 7A WUI code and explores key components such as siding, roofing, soffits, vents, and decks. The paper also explains the differences between noncombustible, ignition-resistant, and fire-retardant-treated wood and introduces the prescriptive and performance-based paths for code compliance, supported by ASTM and SFM test methods. Ideal for designers, builders, and policymakers seeking to enhance wildfire resilience through material choices and assembly testing.