Your driver license is valid for 5 years and will expire on your birthday or 30 days after your birthday if you are turning 21. You may renew the license anytime up to 180 days before it expires (unless you are turning 21, in which case you must wait until your 21st birthday).
Notes: If Congress failed to pass a federal budget or a continuing resolution for fiscal year 2014, the corporation would remain open during a government shutdown, and its employees would report to work.
The US government has not undergone a shutdown since 1995-96, when services were suspended for a record 21 days. Republicans demanded then-President Bill Clinton agree to their version of a balanced budget.