In the city of Houston, yes. Not mentioned in the other counties I've looked at.
3 new ( the only ones currently) food truck / trailer parks opened in Houston this year all within the city limits. Without my city Medallion I can't park on their properties to vend and they have been packed now that the weather has turned.
@jazzybadger - what part of Ft. Bend.? big A@@ county as you know. I'll let you know when I'm all legal and where I land. You can check out the facebook page or follow me on twitter as well.