I think for the most part provided your certifications are equivalent to NFPA / IFSTA / Proboard you shouldn't have any problem getting the required certifications. Commonly we apply for the common seals (IFSTA / PROBOARD) with our NFPA accreditations because they are internationally recognized training standards.
Typically you just submit your existing credentials to those institutions and each certification costs a certain amount of money. This is assuming you have any training.
I don't know what would prevent you from applying... We're talking about CANADA here eh!
AFD / FOD
"Because sometimes what they know CAN hurt you."