Abstract : Consultant Report is the estimation of case total limits for catastrophic re-insurance payments to be made to Army Gateway sites beginning Fiscal Year (FY) 1992. Case totals included both institutional and professional services CHAMPUS payments. Calendar Year (CY) 1990 data were used to derive estimates to insure using only completed cases. Catastrophic case cutoffs are listed as part of the report Summary. These cutoffs when implemented by Health Services Command (HSC) will result in approximately 5% of each Gateway site's total CHAMPUS budget being paid through catastrophic re-insurance. An actual application of the model using two Gateway sites is also included. Appendix A lists the actual computation for each site and displays cutoffs associated with various percentages of the budget paid as re-insurance. Appendix B displays catastrophic cases for each Gateway site which satisfy the cutoff criteria during CY 1990.