Government Contracts - Delaware   Chimes has millions of dollars in federal (NISH/JWOD) and state set-aside contracts, where people with disabilities work side by side with the rest of the workforce. In Delaware, these contracts include the provision of custodial services for nearly 100 buildings at the Dover Air Force Base. Chimes has millions of dollars in federal (NISH/JWOD) and state set-aside contracts, where people with disabilities work side by side with the rest of the workforce. In Delaware, these contracts include the provision of custodial services for nearly 100 buildings at the Dover Air Force Base.