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

Thursday, March 10, 2022
11:00 am – 2:30 pm CST


Presented by:
Wendy Lathrop, PLS, CFM

Flood Zones and Water Surface Elevations in the NFIP –
What They are and Why They Matter
General land use regulation and specific federal minimum standards
• Local land use and emergency planning
Insurance rating in the NFIP
• Recent changes in methodology and their effects
Recognizing hazards and risks
• How zones and elevations affect property owners

Sources of Base Flood and Other Water Surface Elevation Information
Why water surface elevations beyond Base Flood Elevation (BFE) matter
FEMA sources of BFE and how to use them (and when to be wary)
• Other possible non-FEMA sources of BFE
• “Best available data”
• BFE in Approximate A Zones
Design flood elevations

Using Elevation Data to Change Flood Zone Designations
LOMAs and LOMR-Fs: distinctions between them, required data for each
• The role of topography and the Elevation Certificate in flood zone changes
Using FEMA’s platforms to submit data for zone and other map changes


 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:
3.0 PDHs
3.0 Florida CE Credits
(Pending in MO and TN)

Professional Engineers:
3.0 PDHs


Continuing Education Credit Information
Improving Survey Services for Floodplains
This webinar is open to the public and offers 3.0 PDHs to professional engineers and land surveyors in most states. Land surveyor course approval is currently pending in Missouri and Tennessee. HalfMoon Education is not seeking approval for land surveyors licensed in Delaware, New Jersey, or Rhode Island.

This educational activity has been evaluated and accredited by The Practicing Institute of Engineering for 3.0 PDHs. It is deemed approved for New York Engineers and Land Surveyors via this accreditation (Regulations of the Commissioner §68.14(i)(2)) and §68.15(i)(2).

The Florida Department of Agriculture and Consumer Services has assigned this course number 10224 for Florida surveyors.

HalfMoon Education is an approved continuing education sponsor for engineers in Florida (Provider No. 0004647), Indiana (License No. CE21700059), Maryland, New Jersey (Approval No. 24GP00000700) and North Carolina (S-0130).

HalfMoon Education is an approved continuing education sponsor for land surveyors licensed in Indiana (License No. CE21700059), Maryland and North Carolina (S-0130).


Wendy Lathrop, PLS, CFM, CFS

President and Owner of Cadastral Consulting, LLC

Ms. Lathrop is licensed as a professional land surveyor in New Jersey, Pennsylvania, Delaware, and Maryland, and as a professional planner in New Jersey. She holds a master’s degree in Environmental Policy and has been involved in surveying since 1974 in projects ranging from construction to boundary to environmental land use disputes. Ms. Lathrop is also a certified floodplain manager through the Association of State Flood Plain Managers (ASFPM) and a Certified Floodplain Surveyor through the New Jersey Society of Professional Land Surveyors. A former adjunct instructor at Mercer County College in New Jersey, she has also taught as part of the team for the licensing exam review course at Drexel University in Pennsylvania. Ms. Lathrop has been teaching seminars for surveyors since 1986 and has been writing articles for surveyors since 1983. She is a contributing editor for The American Surveyor magazine, and she has four articles included in the American Bar Association’s text, Land Surveys: A Guide for Lawyers and Other Professionals. She and Stephen V. Estopinal, PLS, PE co–authored a book titled Professional Surveyors and Real Property Descriptions: Composition, Construction, and Comprehension, published by John Wiley & Sons, Inc. in 2011. She is also on the faculty of GeoLearn, a web-based educational provider. Ms. Lathrop is a past president of the New Jersey Society of Professional Land Surveyors and of the National Society of Professional Surveyors, and she has served on the Board of Directors for the American Association for Geodetic Surveying.