hca.wa.gov/erb. HCA 50-0115 (12/24) ERB fact sheet – PEBB and SEBB Programs. ERB website. Page 2 of 2 0 50000 100000 150000 200000 250000 300000 350000 400000 PEBB SEBB 233,757 131,580 83,632 44,499 92,543 102,005 409,932 278,084 Subscriber Spouse/SRDP Dependent Totals. PEBBandSEBBmemberenrollment.