The document provides an overview and analysis of food truck regulations across 20 major US cities. It finds that the 5 friendliest cities for food trucks are Portland, Denver, Orlando, Philadelphia, and Indianapolis based on factors like permits/licenses requirements, operating restrictions, and costs. The 5 most difficult cities are Boston, Washington D.C., San Francisco, Minneapolis, and Seattle. It also notes that regulatory burdens vary widely between cities and can influence the growth of the food truck industry.