Federal regulations (49 CFR 391.11(b)(2)) mandate that commercial truck drivers in the U.S. must read and speak English sufficiently to understand highway signs, communicate with the public, respond to official inquiries, and complete reports. This rule, in place since 1971, aims to ensure safety, as misinterpreting signs like “Wrong Way” or “Runaway Truck Ramp” can lead to catastrophic accidents. However, enforcement has been inconsistent, particularly after a 2016 Federal Motor Carrier Safety Administration (FMCSA) memorandum relaxed penalties for non-compliance, leading to a reported increase in fatal truck crashes from 4,500 in 2016 to 8,837 in 2022.[](yahoo.com/news/trucker-could…) A notable case is the 2019 Colorado crash involving Rogel Aguilera-Mederos, a Cuban-born truck driver who spoke limited English. He missed signs for a runaway truck ramp on I-70, driving at 85 mph in a 45 mph zone, and crashed into slowed traffic, killing four and injuring others. His initial 110-year sentence was reduced to 10 years after public outcry, but the incident highlighted the dangers of language barriers. Another example is a 2025 West Virginia crash where a non-English-speaking driver, Sukhjinder Singh, jackknifed during winter conditions, killing one person.[](cdllife.com/2025/usdot-point…) Critics argue that non-English-speaking drivers, including some Mexican truckers operating under B-1 visas or non-domiciled CDLs, contribute to unsafe roads. A Wyoming congresswoman and advocacy groups like American Truckers United cite cases where drivers couldn’t read critical signs, leading to accidents. Data is limited, but posts on X and industry discussions suggest ongoing concerns, with some estimating only 30% of B-1 visa drivers have adequate English literacy.[](dcnewsnow.com/news/us-and-wo…)[](xitter.cf/Larue7718/status/19349…)[](xitter.cf/Pyro___Rob/status/1934…) On the other hand, some argue the issue is overstated. A 2025 FreightWaves discussion notes that many non-English-speaking drivers are skilled and that accidents due to language barriers are a small fraction compared to causes like distracted driving or DUIs. CANACAR, a Mexican trucking association, is responding with enhanced English training programs to address the issue.[](thetruckersreport.com/trucki…)[](kpbs.org/news/economy/2025/0…) No comprehensive statistics directly link Mexican trucker accidents to misreading signs like “You’re Going the Wrong Way,” but anecdotal evidence and high-profile cases underscore the safety risks. In April 2025, an executive order by President Trump reinstated stricter enforcement of English proficiency, aiming to reduce such incidents.[](overdriveonline.com/regulati…)