Someone did a google search for "why do many churches ban the throwing of rice today? what do people t" that got them to my blog. I don't have access to any specific legislation but I have heard that in many places throwing rice out of doors is banned by local authorities because it is a hazard for birds. Also, the church janitor probably got tired of cleaning the stuff up. I'm guessing that the person's next question was about what people throw instead. Bird seed and soap bubbles have been used as alternatives. And just in case anyone is interested rice is a symbol of fertility so it was thrown at newlyweds to wish them fertility and prosperity.