All public and private funds collected are immediately deposited in more than 50 local financial institutions and invested in certificates of deposit and securities guaranteed by the full faith and credit of the United States of America in accordance with the DuPage County Treasurer's Investment Policy with Appendix A.
Being certified means holding the Certificate of Clinical Competence (CCC), a nationally recognized professional credential that represents a level of excellence in the field of Audiology (CCC-A) or Speech-Language Pathology (CCC-SLP) .
SPC is one of the three categories of Statistical Quality Control (SQC). SQC is a statistical method of analyzing variations in the manufacturing process in order to make it better and more effective. Only a certain number of samples are needed to determine whether the products are acceptable.