Simulated Returns

After reading Standards and Practice, GIPS and Asset Manager code what is rule or rules about actually being able to use simulated returns. Are these readings consistent about this or do some differ. For example, i recall reading that you can use simulated returns if you disclose in Asset Mgr Code but i thought GIPS said no.

you can use simulated with disclosure ofcourse, and GIPs has no objects as long as simulated portfolios are not on GIPS report. YOu can present them separately but not in GIPS compliant presentation