To ensure that the facility is used only in an emergency, the charge the Fed makes for such lending is usually one percentage point above the money-market rate it targets in its daily operations.

However, many Certification Authorities offer a demo facility that lets you generate demo (test) certificates at no charge.

When the patient arrives at a medical facility, the doctor in charge uses the service bus to check the patient's allergy history from an application running on the patient's cell phone.