Project Summary/Abstract This project will create a longitudinally consistent database of information on occupations in the Health and Retirement Study (HRS). Occupational information in the HRS has been coded using three different Census occupational coding schemes, with 2010 the most recent. We propose to use information provided by respondents, in interviews in 2004 and earlier, to recode all occupations into the 2010 Census framework. To maximize efficiency we will first utilize automated tools including crosswalks and the National Institute for Occupational Safety and Health (NIOSH) Industry & Occupation Computerized Coding System (NIOCCS) and then use experts on occupational coding to hand code more complex cases. We will link this dataset to rich data on job characteristics from the Occupational Information Network (O*NET) and the Dictionary of Occupational Titles (DOT). The availability of consistent occupation and industry codes for all or much of the lifetime careers of HRS respondents linked to O*NET and DOT would create opportunities for researchers to address many important research questions concerning the determinants and consequences of the United States (US) occupational structure. This may be especially useful for studying work-related risk factors for Alzheimer’s Disease and Alzheimer’s Related Dementias (ADRD), racial and ethnic disparities in ADRD rooted in racial and ethnic differences in occupation, and the effects of differences in the cognitive and physical demands of work on the economic security and physical and brain health of workers as they enter retirement. The resulting data and relevant documentation will be disseminated through the HRS website as a restricted data product available in the MiCDA data enclave. We will hold and record a webinar and conduct a preconference workshop (if accepted) to provide training to the research community on the use of this new data resource. We will participate in the National Institutes of Health (NIH) to be held in Bethesda, Maryland in Summer 2023 to share our results.