# Tools and Guidance The Air Quality **Tools and Guidance** section provides access to the documentation, applications and reference resources supporting European air quality reporting. European air quality reporting is currently undergoing the transition from **Reportnet 2** to **Reportnet 3**. During this transition period, both reporting systems remain operational and reporting countries may need to use resources supporting either reporting environment. The available resources are organised according to the reporting infrastructure they support. ## Reportnet 3 ### Reporting Guide The Reporting Guide is the central technical documentation for Reportnet 3. It provides comprehensive guidance on the reporting schema, reporting tables, reference tables, identifiers, examples and reporting principles. - **[Open the Reportnet 3 Reporting Guide](https://eeadata.github.io/AQ.Documentation.ReportingGuide/)** --- ## Reportnet 2 (legacy) The following resources continue to support reporting activities performed through the Reportnet 2 infrastructure. ### Reporting procedures - Submission procedure - Guidelines for submissions after the official deadline ### Guidance documents - IPR Guidance – Part 1 - IPR Guidance – Part 2 - MS and EC Common Understanding ### User guides - User Guide – B to G data flows - User Guide – H to K data flows - Provisional Answers to Questions (datasets H–K) ### Applications - **[PaPeRS – Plans and Programmes e-Reporting System](papers.md)** - **[Access to CDR](access-to-cdr.md)** - Zone geometry checks - Aggregation --- ## Shared reference resources The following reference resources are applicable across both Reportnet 2 and Reportnet 3. ### Code lists - **[Open Code Lists](code-lists.md)** ```{toctree} :hidden: papers access-to-cdr code-lists ```