Douglas Olson is the former Chief of the NIST Office of Weights and Measures (OWM) retiring from federal service in 2021. Prior to becoming the Chief of the OWM he served a two-year detail at the International Bureau of Weights and Measures (BIPM) in their international liaison and communications office, working with National Metrology Institutes and Regional Metrology Organizations in the implementation of the CIPM Mutual Recognition Arrangement. He is recognized nationally and internationally as an expert in piston gauge pressure standards, and while in the NIST technical laboratories he was responsible for realizing, maintaining, and disseminating the national measurement standards for pressure for the range from 10 kPa to 300 MPa. He has published widely in the field of pressure measurements and standards.