The Chattanooga Convention Center has on-site parking in their parking garage.

Directions to Chattanooga Convention Center
1150 Carter Street
Chattanooga, TN

Option 1:
Take I-75 South to I-24 West to Chattanooga
I-24 to Exit 178, which is Highway 27 North
Exit right on to Highway 58 North, Market Street
Merge onto Market Street and move into left lane
At second stoplight, turn left West Main Street
Travel 6 blocks and turn right onto Carter Street.
Drive approximately three blocks on Carter Street to the Chattanooga Convention Center on right
Drop passengers off in front of the Chattanooga Convention Center
Park in Convention Center Parking Garage; the garage entrance is to the right.

There is also another Parking Garage entrance on the back side on Chestnut Street:
Turn left on W. 12th and then right on Chestnut Street.
The Parking Garage entrance is on the left and sign reads "Trade Center Parking"

Option 2:
Take I-75 South to I-24 West to Chattanooga
I-24 to Exit 178, which is Highway 27 North
Take Exit 1 on right to Main Street
Turn left on to Main Street at stop sign at bottom of ramp; Do not go under highway
Stay in left lane after turning on Main Street
At first intersection, approximately 300 feet, turn left onto Carter Street
Drive three blocks on Carter Street to the Chattanooga Convention Center on right
Drop passengers off in front of the Chattanooga Convention Center
Park in Chattanooga Convention Center Parking Garage; the entrance is on the right

There is also another Parking Garage entrance on the back side on Chestnut Street:
Turn Right on 12th Street and then right on Chestnut Street
The Parking Garage entrance is on your right and the sign reads "Trade Center Parking".