You can now opt out of the SEHIP as your primary coverage and elect supplemental
coverage through the SEIB, at no charge. This could save you money. For instance,
if you are eligible for coverage through another employer group plan, you can opt
out of SEHIP and enroll in that plan. You can then obtain supplemental coverage
through the SEIB that will cover virtually all of your out-of-pocket expenses.
Supplemental Plan Handbook