A competitive inhibitor binds in the active site. This prevents the enzyme from binding to the substrate. When the active site is blocked, the reaction cannot occur. It is like the inhibitor and the substrate are competing for the active site.
Texas vehicle registration renewal notices are sent by the Department of Public Safety to the driver's mailing address six to eight weeks before the expiration date of your car registration. Once you receive this notice, you can renew auto registration by mailing certain documentation to a local TX DPS office.
1 Licensees whose registrations are due to be renewed on or after January 1, 2018, must complete 1.0 hour of acceptable continuing education for each month of their registration periods (see Question 9)  I just received my registration certificate and notice that the registration period is less than three years.