Disclaimer & Trademark Notices

1. Professional Engineering Responsibility

The calculation outputs, file restructures, and drawing configurations generated by the Infradigital CAD suite of tools are provided solely as engineering productivity assistants and drafting accelerators. They do not constitute official professional engineering endorsements.

Every highway design professional using these tools remains entirely responsible for reviewing, checking, and validating the structural, mathematical, and logical correctness of all final output spreadsheets and drawing schedules before submitting them to any governmental agency, municipal authority, or private client.

2. Autodesk® Trademark & Non-Affiliation Notice

3. No Official Government or Agency Affiliation

Infradigital CAD is an independent engineering project. It is not affiliated with, endorsed by, or officially associated with the Ethiopian Roads Administration (ERA), Addis Ababa City Roads Administration (AACRA), regional road administrations, or the American Association of State Highway and Transportation Officials (AASHTO).

References to standard manuals (e.g., "ERA Geometric Design Manual 2013", "AACRA Geometric Standards", "AASHTO Green Book") are made solely to describe mathematical engineering design criteria, standard formulas, and naming conventions implemented in our tools.

4. No Warranties & Limitation of Liability

The software is provided "as is", without warranty of any kind, express or implied, including but not limited to the warranties of merchantability, fitness for a particular purpose, and non-infringement. In no event shall the author, developer, or copyright holder be liable for any claim, damages, or other liability arising from, out of, or in connection with the software or the use or other dealings in the software.