More than 50 Connecticut trucks have been ordered off the road as part of Gov. M. Jodi Rell’s crackdown on unsafe trucks, the Stamford Advocate reported. State inspectors found serious safety violations in more than half of the vehicles operated by 25 intrastate trucking firms with the worst safety records. On Tuesday the governor released a list of the 25 worst interstate firms that will also be inspected. This marks the second round of inspections prompted by the out-of-control truck crash in a suburban intersection in Avon that killed four motorists in July. All the trucking companies listed were put on notice by the state and will face frequent inspections because of their poor safety records. No company has yet been fined. Some of those interstate trucking companies have atrocious safety records, The Hartford Courant says. One has been involved in four accidents, all resulting in injuries, in two years. The DMV temporarily took out of service 18 of the 32 vehicles owned by Waste Material Trucking in Southington and seven of the nine vehicles owned by Baier Construction of Bloomfield. Both lists were compiled using data from the federal Motor Carrier Safety Administration. The data includes information about accident frequency, driver safety records and the number of vehicles taken out of service. DMV spokesman William Seymour said the formula used to perform the ranking is supported by the federal government for its accuracy.