Washington, Feb. 22 -- All truckers and bus drivers will have to take their commercial driver's licence tests in English as the Trump administration expands its aggressive campaign to improve safety in the industry and get unqualified drivers off the road. Transportation secretary Sean Duffy announced the latest effort Friday to ensure that drivers meet the federal requirements to understand English well enough to read road signs and communicate with law enforcement officers. Florida already started administering its tests in English. Currently, many states allow drivers to take their licence tests in other languages even though they are required to demonstrate English proficiency. California offered tests in 20 other languages. Duffy said that a number of states have hired other companies to administer commercial driver's licences tests, and those companies aren't enforcing the standards that drivers are supposed to meet to demonstrate their driving and English skills. These latest enforcement efforts come just days after the Transportation Department said 557 driving schools should close because they failed to meet basic safety standards. The department has been aggressively going after states that handed out commercial driver's licences to immigrants who shouldn't have qualified for them ever since a fatal crash in August. A Punjab-origin truck driver who Duffy says wasn't authorised to be in the U.S. made an illegal U-turn and caused a crash in Florida that killed three people. The driver was arrested. A video of the deadly incident showed the moment the vehicle suddenly took a turn, which caused an incoming car to crash into it. As per reports, the person behind the reckless manoeuvre was identified as Punjab-origin Harjinder Singh, who has been staying in the USA illegally since 2018. Other fatal crashes since then, including one in Indiana that killed four members of an Amish community earlier this month, have only heightened concerns. States are expected to ensure drivers can speak English before giving them a commercial licence, and then law enforcement is supposed to check driver's language skills during any traffic stops. Drivers who can't communicate effectively are supposed to be pulled off the road. A refederal effort involving 8,215 inspections led to nearly 500 drivers being disqualified because of their English skills....