Challenge projects should be easy to implement in the timeline specified in your application. The goal is that they are implemented by May of 2018, at the latest. If they are implemented earlier, that is great! If for whatever reason, there is a deviation from the proposed timeline, this should be communicated to KaBOOM! immediately.
We'll be looking closely at what it's going to take for your project to be completed during our review period. If you run into challenges such as weather, construction delays, permitting delays, and other things beyond your control, we'll work with you to submit an extension to complete your project within a reasonable timeframe.