It was also reported that the Don Mariano Transit did not pay its drivers their monthly salary .
The Department of Labor and Employment admitted that Don Mariano Transit Corporation 's Labor Standards Compliance Certificate was expired since July 2013 .
Labor Standards Compliance Certificate was also reported that the Don Mariano Transit Corporation     did not pay Labor Standards Compliance Certificate 's drivers their monthly salary .
The Department of Labor and Employment admitted that Don Mariano Transit Corporation 's Labor Standards Compliance Certificate was expired since July 2013 .