For instance, an independent professional services or consulting firm may rely solely on billable utilization. Students work 40 billable hours for each clinic credit hour. It represents some of the profits previously associated with payments for separately billable drugs. Amadeus processed 945 million billable travel transactions in 2011. Those upon whom CJFOs are imposed are referred to as legal debtors or billable inmates. They provide billable services direct to individual households. Xpert-Timer tracks time for billable or non-billable projects. The next highest measurement becomes the "billable use" for the entire month. Leading the "Lost Girl" cast is Anna Silk ("Billable Hours", "Being Erica") as Bo.