Final answer:
RSI schedules are required for governments with defined benefit pension and other employee benefit trust plans under GASB standards. They offer vital information on the plan's financial status.
Step-by-step explanation:
RSI schedules for governments with defined benefit pension and other employee benefit trust plans are required under GASB. RSI, or Required Supplementary Information, provides important context and additional insights into the health and sustainability of a government's pension and other post-employment benefit (OPEB) plans. The schedules typically include details on the funded status, contributions, and potential trends affecting the plan.