Onsite Review Instrument (OSRI) and Guidance This instrument is used to review cases during the onsite review component of the CFSRs. Resources PDF (English nonfillable) (PDF, 1.17 MB) PDF (English fillable) (PDF, 1.75 MB) PDF (Spanish) fillable (PDF, 2.74 MB) PDF (Spanish) nonfillable (PDF, 1.03 MB)