17. Transportation by rail: Pensionable employment includes, in the case of employment in a transportation enterprise by rail, whose principal establishment is in Canada, that part of the employment determined by the employer, under standards approved by Retraite Québec, to be in respect of employment in Canada, if the employee ordinarily reports for work in Québec.
R.R.Q., 1981, c. R-9, r. 8, s. 17.