409.Any benefit paid under the Government and Public Employees Retirement Plan before 1 January 1997 to a pensioner who ceased to be a member of that plan before 1 January 1997 while the pensioner was a non-unionizable employee shall continue to be paid, after 31 December 1996, under Title IV.0.1 of the Act respecting the Government and Public Employees Retirement Plan (chapter R-10).