Webinar instructions will be emailed before the date of the webinar.

Please log into the webinar 15 – 30 minutes before start time.

Monday, November 6, 2023 | 11:00 am – 3:30 pm CST
Tuesday, November 7, 2023 | 11:00 am – 3:00 pm CST


Presented by Todd Horton, PE, PLS 

State Plane Coordinate System Fundamentals

  • Geodetic datum elements
    • Reference ellipsoids
    • Shape of the earth
    • Earth-centered, Earth-fixed cartesian coordinates
  • North American Datum of 1983 (NAD83)
    • Development history
    • State and national adjustments
  • State Plane Coordinate System fundamentals
    • Map projection concepts
    • Understanding the Lambert Conformal Projection
    • Understanding the Transverse Mercator Projection
    • Scale factor and elevation factor
    • Inherent system distortion

Updating the State Plane Coordinate System

  • Geoid science
    • Ellipsoid height and orthometric height
    • Past and future model evolution
  • North American Terrestrial Reference Frame 2022 (NATRF2022)
    • Fundamental changes from NAD83
    • Low distortion projections
    • National Geodetic Survey goals
    • US Survey Foot deprecation
    • Implementation timeline


Webinar Instructions
All attendees must log-on through their own email – attendees may not watch together if they wish to earn continuing education credit. HalfMoon Education Inc. must be able to prove attendance if either the attendee or HalfMoon Education Inc. is audited.

Certificates of completion can be downloaded in PDF form upon passing a short quiz. A link to the quiz will be sent to each qualifying attendee immediately after the webinar. The certificate can be downloaded from the Results page of the quiz upon scoring 80% or higher.

Webinars are presented via GoToWebinar, an easy-to-use application that can be run on most systems and tablets. Instructions and login information will be provided in an email sent close to the date of the webinar. It is highly recommended that you download, install and test the application before the webinar begins by clicking on the link in the email.

GoToWebinar App requirements:
Windows 7 – 10 or Mac OSX Mavericks (10.9) – macOS Catalina (10.15)

Web Browser:
The two most recent version of the following browsers:
Google Chrome, Mozilla Firefox, Apple Safari, Microsoft Edge
Internet Explorer v11 (or later) with Flash enabled

Internet connection: Minimum of 1Mbps       Hardware: 2GB RAM or more

For more information, visit the Support section at


Land Surveyors:
7.5 PDHs 

Professional Engineers:
7.5 PDH


Continuing Education Credit Information
This webinar is open to the public and is designed to qualify for 7.5 PDHs for professional engineers and land surveyors in most states; please refer to specific state rules to determine eligibility.

HalfMoon Education is an approved continuing education sponsor for land surveyors licensed in Indiana (License No. CE10600325), Maryland, and North Carolina (S-0130). HalfMoon Education is deemed an approved continuing education sponsor for New York engineers and land surveyors via its registration with the Practicing Institute of Engineering.

This course has been evaluated for compliance with NYS Mandatory Continuing Education requirements by the Practicing Institute of Engineering and has been approved for 7.5 PDHs in the fields of professional engineering and land surveying.

This course has been registered with the Florida Board of Professional Surveyors and Mappers for 7.5 CE credits and assigned #10600. This course has been submitted to the Missouri Board for Architects, Professional Engineers, Professional Land Surveyors and Professional Landscape Architects for review and accreditation, which is currently pending.

Visit this course listing at for updates on pending credits. Completion certificates will be awarded to participants who complete this event and earn a passing score (80%) on the quiz that follows the presentation (multiple attempts allowed).


Todd Horton, PE, PLS

Owner of Meridian Geospatial Consulting, LLC

Meridian Geospatial provides technician training and continuing education seminars for the land surveying industry. Mr. Horton retired from the full-time faculty at Parkland College in Champaign, Illinois, where for 25 years he taught land surveying and construction management courses. He founded the land surveying degree program at Parkland College in 2001. The Illinois Professional Land Surveyors Association awarded him the Carter Jenkins Distinguished Service Award in 2013. Mr. Horton graduated from the University of Illinois in Civil Engineering. He has participated in planning, design, construction, surveying and maintenance of civil engineering projects including commercial structures, residential subdivisions, airfields, utility systems and highways. He acquired significant public sector experience with the US Air Force and the Illinois Department of Transportation as well as private sector experience with engineering and surveying firms in central Illinois.

Streamable MP4/PDF Price: $329.00