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FREQUENTLY ASKED QUESTIONS

Question

How is grade of service calculated?

Answer

The grade of service is the percentage of IERs sent that were received within the perishability time limit. So if an IER is received, but it took more time than the perishability value specified for it, it will not be counted for the grade of service calculation.

For instance, if 200 IERs were Sent, 150 IERs were Received, but of those 150 received, only 100 were received within their perishability time frame, then the calculation for grade of service would be 100/200, or 50%.