| Standard | Authority | Legal status | Rule type |
|---|---|---|---|
| Austria "Hitzefrei" Construction Rule (BSchEG) | BUAK / Austrian Federal Government | Regulation | Stop Work Rule |
| Austria Hitzeschutzverordnung 2026 | Republic of Österreich / BMASGPK (BGBl II 45/2026) | Regulation | Control Overlay |