This document provides instructions for completing Form 8, the Investment Information Summary that pension plans in Ontario must file with the Financial Services Commission of Ontario (FSCO). It explains who must file the form, relevant statutes and regulations, how to treat hybrid defined benefit/defined contribution plans and plans invested in a master trust. It provides detailed instructions for completing each part and line of the form, including definitions and examples. Plan administrators must file the form electronically through FSCO's Pension Services Portal within 6 months of the plan's fiscal year end.