Specifications include, but are not limited to: New Castle County is seeking a preventive maintenance/inspection and on-call service repair of diesel/natural gas emergency generators and transfer switches located within New Castle County, Delaware. Proof will be required of each contractor showing it has satisfactorily maintained equipment of the type and character covered herein for a period of at least ten (10) years. Successful vendors must meet or exceed all federal, state and local rules and regulations as related to this type of service/repair, and must perform work in accordance to them, including, but not limited to, licenses, permits, insurance, etc. Contractors must have an emergency local telephone number or offer toll-free service that is answered in person 24 hours a day, 365 days a year.