MCS-150 Biennial Update

FMCSA requires all drivers operating under DOT# to update their information every two years based on the last two digits of their DOT#. The last digit determines a month it has to be filed on and the next-to-last digit determines if the year is odd or even. Exemple: for DOT 123456 the update has to be filed in June (6) on all odd numbered years (5).