Geographic Information Systems (GIS) and related geospatial data products and services are valuable tools that provide a wide range of benefits. However, there are limitations to geospatial data and services that are important to understand before using them.
It has been common practice in the GIS field for many years to provide Disclaimer Statements on maps and data products so that the people using them understand these limitations. This helps to inform users that the data is not suitable for some purposes and to protect GIS professionals from undue liability because users of the data they distribute use the data to make decisions that it was not intended to support.
On September 01, 2011, Texas House Bill Number 1147 became law. This Act requires GIS professionals to clearly identify the primary limitation of GIS data and related services - that is cannot replace data produced or supervised by a Registered Land Surveyor and may not be suitable for legal, engineering, or surveying purposes. The full text of the Act may be viewed here. The history and details of the Act may be found on the Texas Legislature Online website entry for this bill.
While HB 1147 specifically speaks to GIS data and services that reference property boundaries and related information, in order to ensure compliance with State law and with GIS professional standards, all websites, data, services, and related products provided by City GIS Services are subject to our standard Disclaimer Statement.
To return to the page that you were attempting to access, please use the "Back" button on your browser or you may return to the City GIS Services home page and find the link to the site that you originally visited. We hope that you find the tools that are provided on our website to be useful.
If you have questions or comments about Disclaimers or any of the websites, data, or services provided by City of Dallas GIS Services, please contact us.