2022 Reference Frame Working Group


The 2022 Reference Frame Working Group reports to the Statewide Mapping Advisory Committee (SMAC), which operates under the authority of the North Carolina Geographic Information Coordinating Council (GICC). The charter for the Working Group states that they will:

  • Evaluate the impact of replacing NAD83 and NAVD88 with geometric and geopotential (4D1) reference frames on state and local governments and the surveying and mapping industry.
  • Recommend practical solutions for implementation of the 2022 Reference Frame.



Member Name From Representation As In Charter
Alex Rankin NCSS NC Surveyors Society
Andy Zoutewelle NCBELS NC Board of Examiners for Engineers and Surveyors
Charlie Brown NCDOT Additional Member
Dave Zilkoski Former Director, NGS Additional Member
David Giordano CGIA (Staff to Committee) Center for Geographic Information and Analysis
Gary Thompson Chair, NCDPS-Geodetic Survey Chair
Hope Morgan NCDPS State Government GIS Users Committee of the GICC
Jeff Essic NCSU Library The North Carolina State University Library
Keith Johnston NCDOT-Photogrammetry Additional Member
Kristian Forslin NC Railroad NC Chapter of the Urban and Regional Information Systems Association
Matt Wellslager SC Geodetic Survey Additional Member
Rich Elkins NC Sec. of State NC Property Mappers Association
Scott Lokken National Geodetic Survey Additional Member
Silvia Terziotti US Geological Survey Federal Interagency Committee of the GICC
Stacey Smith Professional Engineers of NC Professional Engineers of North Carolina
Tom Morgan Private Citizen Additional Member
Stephen Dew Guilford County GIS Local Government Committee of the GICC