The German marine seismic community, in collaboration with the DAM (Deutsche Allianz Meeresforschung - German Marine Research Alliance), has established a metadata standard for 2D multichannel seismic reflection raw data to align with FAIR principles (Findable, Accessible, Interoperable, and Reusable) and comply with the EU INSPIRE directive. Initiated by the NFDI4Earth Pilot German Marine Seismic Data Access project and developed alongside the DAM Underway Research Data initiative and the PANGAEA repository, this effort aims to streamline data archiving processes for German research vessels. By adopting this standard, the marine seismic community enhances interoperability with global repositories and ensures efficient data management for 2D multichannel seismic reflection raw data.