There are cost-sharing agreements with a number of provinces to deal with the emergency management assistance plans, in particular Alberta, Ontario, Saskatchewan, and more recently Manitoba. There are cost-sharing agreements in place.
In previous years, many of the costs would have gone through Public Safety Canada's disaster financial assistance arrangement for reimbursement. However, this year the DFAA was not suitable as the sole funding mechanism due to the magnitude of the costs. Several first nations require assistance cash in managing their eligible costs until such time as they're reimbursed through the DFAA, and that can take three to five years.
Once there is reimbursement to provinces, then first nations expenses and AANDC mechanisms to replace or ensure there is not a duplication in funding kick into place.
I'm not sure whether that fully addresses your question.