The SBU is an independent insurance company capable of issuing policies directly or policies fronted by a commercial insurer to the insured company and third parties. Each SBU has a unique business purpose and an independent tax identification number. The SBU's business purpose, taxpayer election, and coverage offerings are specified. Unlike the protected cells or segregated accounts of rent-a-captives, SBUs have greater flexibility offered by self-governance. An SBU is protected from the financial obligations of other SBUs by Delaware statute.