Speedometer icon When do I need to do my DOT required biennial update?

Question: 
When do I need to do my DOT required biennial update?
Answer: 

If the next-to-last digit of your USDOT number is odd, file your update every odd-numbered calendar year.  If the next-to-last digit of your USDOT number is even, file your update every even numbered calendar year.  The last number indicates the month the update must be filed.  It is due by the last day of:

 

 

USDOT

ends in

 MONTH DUE

1

January

2

February

3

March

4

April

5

May

6

June

7

July

8

August

9

September

0

October