11. In this Division,(a) “employment in a transportation enterprise” means the employment of an employee in a pay period in a transportation enterprise by road, by air, by rail or by water, where such employment is the employment primarily engaged in by that employee in the pay period and is performed partly within Québec and partly outside Canada;
(b) “pay period” means a pay period as defined in the Regulation respecting contributions to the Québec Pension Plan (chapter R-9, r. 2).