Essentially a self-assessment is determining what activities are planned on site, utilizing general mitigation, which can come off the DFO website or off more standard mitigation that is used for similar projects, then looking at mitigation specific to your location, your activity, fish in the area, habitat. Following that, you would ensure that information is available should DFO request it. Ensure that the mitigation you've identified is in place. That's the process, essentially.
On December 7th, 2016. See this statement in context.