The audit instrument developed by DOJ, in both its paper- and web-based forms, is the only audit instrument that DOJ-certified PREA auditors are authorized to use to conduct PREA audits. Correctional agencies may elect to use third-party software to assist with audit planning and preparation (e.g., document retention and organization); however, such software may not be used by PREA auditors to replace or supersede the audit instrument developed by DOJ. If such software is used, auditors are still responsible for conducting high-quality, objective, comprehensive, and reliable audits, and using DOJ-approved auditing materials. The DOJ does not endorse any third-party PREA auditing assistance software. Correctional agencies are encouraged to carefully vet all third-party auditing assistance software to ensure that it does not duplicate or replace use of the Online Audit System, which is available free of charge and allows correctional agencies and PREA auditors to streamline, organize, and automate much of the PREA audit process in a secure environment. Correctional agencies and PREA auditors interested in learning more about the Online Audit System may contact the PREA Resource Center at firstname.lastname@example.org.