In accordance with the Standards for Educational and Psychological Testing and PAR's competency-based qualification guidelines, many tests and materials sold by PAR are available only to those professionals who are appropriately trained to administer, score, and interpret psychological tests. Eligibility to purchase restricted materials is determined on the basis of training, education, and experience. Customers may find, however, that they must update their qualifications as they progress through their career. If you have received licensure from an appropriate agency or have additional training and experience that meets the requirements of a higher Qualification Level, you may update your Qualification Level in two ways. If you are registered on our Web site, please sign in. Once you are signed in, click on Update Qualifications on the right of the page in the PAR Shopping Cart to supply us with your additional information. If you are not currently registered on our Web site, you may send your update request directly to Customer Support . Be sure to include your current PAR Customer Number and all relevant information about your additional credentials.