Welcome back to The Week in Weed, your Friday look at news in the world of legalized marijuana.

Various outlets have been reporting on the study done by the AAA Foundation for Traffic Safety on the increase in fatal car accidents involving drivers who have used marijuana. The study shows that the number of such cases has doubled since Washington legalized recreational use of cannabis. This article gives a summary of the report, as well as links to other useful resources.

The prospect of legal medical marijuana in Florida has the industry excited about serving what could become the nation’s second largest market for cannabis. Floridians will have the opportunity to vote up or down on Amendment 2, which would expand medical marijuana for many more patients than have access to the drug under current law.

The messenger business is about to get a little easier for those delivering marijuana in Colorado. The “marijuana transporter” license would, among other things, allow couriers to store cannabis temporarily if circumstances like bad weather prevented them from completing a delivery.