263.Section 154, sections 161 and 162, sections 166, 173 and 178, to the extent that sections 24, 51 and 67 of the Act respecting the Government and Public Employees Retirement Plan (chapter R-10) which they amend or, as the case may be, replace respectively, refer to the Pension Plan of Certain Teachers, sections 202, 203 and 205, to the extent that sections 201, 202 and 207 of the Act respecting the Government and Public Employees Retirement Plan which they replace or, as the case may be, amend, respectively, refer to the Pension Plan of Certain Teachers, section 206, sections 213 and 219, to the extent that sections 21 and 50 of the Act respecting the Teachers Pension Plan (chapter R-11) which they amend, respectively, refer to the Pension Plan of Certain Teachers and sections 235, 243, 250 and 253, to the extent that sections 27, 66.1, 83 and 89 of the Act respecting the Civil Service Superannuation Plan (chapter R-12) which they amend, respectively, refer to the Pension Plan of Certain Teachers, have effect from 26 June 1986.