311. The obligation provided for in section 102 whereby transferred amounts must be paid in the form of a life pension shall not apply to amounts transferred pursuant to section 236 and relating to benefits accumulated under the pension plan in respect of service credited before 1 January 1990 unless, at the time of total or partial termination of the plan, the member had attained 45 years of age and completed a period of continuous employment of not less than ten years, or had been an active member for a period of not less than ten years.