A licensee shall create and maintain a unique identifier system for all administrative and examination documents originating from or received by the laboratory for each case by: Writing all documents in permanent ink and defining exceptions in the laboratory SOPM; Using electronic signatures only if a security protocol is in place; Having a tracking policy and system for electronic record changes, when the electronic document is complete; and Identifying all administrative documents with a unique identifier and signing or initialing by the individual who prepared or received the document. In regard to examination documents, a licensee shall ensure that: If information is recorded on both sides, each side of a page is considered a separate page; If examination documents consist of multiple pages, a page numbering system that includes either the total number of pages or a mark signifying the end of the document is used; In the absence of the examiner or analyst, another competent examiner or analyst is able to evaluate and interpret the data; An examination document: Includes details to support the conclusions and opinions reported by each examiner or analyst; Is free of erasures or obliterations; Is marked with a unique identifier and the examiner’s or analyst’s handwritten initials or electronic signature; and Includes each date casework or an analysis was performed; If an individual in addition to the examiner or analyst interprets or reports the results, both individuals initial or electronically sign each page of the examination documents; Abbreviations and symbols are defined in the SOPM; Erroneous results, corrections, and amendments: Are crossed out with a single line, not erased, and not deleted or made illegible; and Have corrections entered beside the erroneous result; All corrections and amendments are initialed and dated; If electronically signed, measures are taken to ensure the signature is secure; and There is no loss or change of the original documents.