North America retains the largest revenue share (โ41%) thanks to Canadaโs nationwide oral-fluid program and aggressive U.S. state-level funding, while APAC is the fastest-growing region with >11% CAGR as Australia, New Zealand, and Thailand scale up high-frequency roadside screening. Macro drivers include escalating traffic fatalities linked to cannabis legalization, insurer pressure for real-time impairment data, and EU-funded interoperable roadside devices that will open a EUR 180 million tender pipeline by 2028. Competitive intensity is risingโfour global diagnostics majors now bundle AI-driven result-read apps with their test cassettes, compressing price points ~6% YoY and accelerating product refresh cycles to 18 months. Overall, the market is transitioning from a niche safety requirement to a standardized enforcement tool, creating outsized opportunities for assay innovators that can deliver 15-second results at <USD 5 per test.