With industry participation, members of the Information Access Division (IAD) have developed a Common Industry Format (CIF) for Usability Test Reports to provide a means for usability engineers to report results of their usability testing. In November 2000, IAD sponsored the 4^th Industry Usability Reporting (IUSR) Workshop to further the progress in reporting usability. The NIST IUSR project seeks to improve the testing and reporting of software product usability and thereby reduce the uncontrolled costs of poor usability. Attendees included prominent industry representatives from software suppliers and organizations with large software procurements, including Boeing, Oracle, Microsoft, and Smart Business Magazine. Several IUSR participants have been performing pilot tests on the current version of the CIF to determine how well it works for usability reporting and to determine its usefulness in software procurement. The results of pilot tests were presented at this IUSR Workshop by Boeing, Microsoft, Oracle, Motley Fool, and NIST. Tests covered business applications, Web usability and a variety of consumer software. Pilot testing was performed in conjunction with a partner, so that customer/supplier pairs each tested the CIF and collected data about its use. The CIF has proven to be stable under a variety of test types during the pilot tests and will be prepared to be submitted into the standardization process of the National Committee of Information Technology Standards (NCITS) in January 2001. While the CIF has only been applied to software usability in pilot testing so far, many of the workshop participants believe that the scope of the CIF should be extended to cover user testing of hardware; the suitability of applying the CIF for hardware testing is under further study. More information is available at http://www.nist.gov/iusr.