> For the complete documentation index, see [llms.txt](https://docs.buildingtransparency.org/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.buildingtransparency.org/ec3/main-features/plan-and-compare-buildings/data-validations.md).

# Data Validations

Some configurations of EC3 have built-in tests that show the user whether their BuildingProject is out of compliance with an owner's program. Generally a buildingProject cannot advance to the next workflow step if it has any validation errors.