If I understand your question correctly, it would be a very small percentage. The way our process works is that before a federal authority, such as Infrastructure Canada or Fisheries, or Transport in the case of NWPA, makes a decision with respect to the project that would allow it to proceed, it is required to undertake an environmental assessment.
The only circumstance in which it would be prevented from making these kinds of decisions, funding decisions or issuing regulatory approvals, is when the environmental effects are significant and not justified. That decision can only be made by an independent panel of experts. So for minor projects, relatively small projects with relatively minor environmental effects, the likelihood of the project not proceeding on the basis of the environmental assessment would be quite small.