Dont know where this information came from. The only agreement I could find between the CFL and NFL was this
In 1997, the NFL provided a $3-million USD interest-free loan to the financially struggling CFL, as CFL teams were losing money after the failed US expansion. In return, the NFL was granted access to CFL players entering a defined two-month window in the option year of their contract. This was later written into the CFL's collective bargaining agreement with its players. The CFL's finances have since stabilized and they eventually repaid the loan. The CFL–NFL agreement expired in 2006. Both leagues have been attempting to reach a new agreement, however the CFL broke off negotiations after Rogers Communications paid $78-million to host eight games of the Buffalo Bills over five seasons.
Link:http://en.wikipedia.org/wiki/Canadian_Football_League
If someone could find something more relevant I'd love to read it.