Versions of s. 172.1(1), definition “excluded activity”, para (d.1)

if the pension plan is a pooled registered pension plan, compliance by a participating employer of the pension plan as a PRPP administrator of the pension plan with requirements under the Pooled Registered Pension Plans Act or a similar law of a province, provided the activity is undertaken exclusively for the purpose of making a taxable supply of a service to a pension entity of the pension plan that is to be made