COLORADO: In October the state of Colorado will have an online inventory tracking system in place to track marijuana shops.

The tracking system is an important tool as regulators try to get a handle on all the recreational and medical marijuana operations.

The state will have to train up to 3,000 people to use the new system, and by December the system will also track marijuana plants with special radio-frequency tags.

While the state is still in the process of creating formal rules to control the recreational marijuana industry, and under the proposed rules entrepreneurs will be charged up to $5,000 just to apply for a recreational marijuana license, and then the licenses themselves can cost up to $14,000.