PeopleSoft 9 using Oracle Label Security

I am working on a project implementing PS Financials/EPM Release 9 and the question came up about certifications with Oracle Label Security? I have implemented PS EPM before using Oracle VPD but never using Oracle Label Security(OLS). I can't even find whether this is a supported configuration at all which leads me to believe it isn't. Anyone ever come acorss a Doc on implementing OLS with PS? or anything stating it shouldn't be considered?

Thanks!