MANILA - The Land Transportation Franchising and Regulatory Board (LTFRB) has listed the country's most dangerous bus operators based on the number of injured (passengers and bus personnel)” for 2011. 1. Admiral Transport 2. Nova Auto Transport 3. AM Liner 4. Gassat Express 5. Joyselle Express 6. Miami Transport 7. Pascual Liner 8. Philippine Corinthian Liner 9. Rainbow Express Inc. 10. CEM Transit Service Meanwhile, the LTFRB has listed Don Mariano Transit as the most dangerous bus operators based on damage to property. 1. Don Mariano Transit 2. Nova Auto Transport 3. Gassat Express 4. Miami Transport 5. Pascual Liner 6. Rainbow Express Inc. 7. Ropal Transport 8. A&B Liner 9. GELL Transport 10. CEM Transit Service A Don Mariano bus driver will undergo drug and alcohol tests after the bus he was driving fell off the Skyway last Monday, killing 18 people. ABS-CBN Umagang Kay Ganda, December 19, 2013