May I make perfectly clear some of these measures: a 33.3% accelerated capital cost allowance for Canadian shipbuilding, a 25% duty on most non-NAFTA ship imports, domestic procurement on a competitive basis for all government shipbuilding and ship repairs, a favourable research and tax credit system, and Export Development Corporation financing for commercially viable transactions.
Without exception, non-NAFTA ship imports will have a 25% duty imposed on them. 
The statement clearly says that most of the non-NAFTA partners will have a 25% duty imposed on them, it does not say if all will be subject to a tariff. 
( z1 impose :ARG1 ( z2 duty :mod ( z3 percentage-entity :value 25 ) ) :ARG2 ( z4 import :ARG1 ( z5 ship :mod ( z6 treaty :polarity - :name ( z7 name :op "NAFTA" ) ) ) ) :ARG2-of ( z8 except :polarity - ) )