Welcome to the new Lessons Learned Corner! Key themes from the H2Incidents database will be presented here and several safety event records will be highlighted to illustrate the relevant lessons learned. Please let us know what you think and what themes you would like to see highlighted in this safety knowledge corner in the future. Past themes include:

• Hydrogen Leak Detection
• Ventilation of Facilities Where Hydrogen is Used
• Hydrogen Compatibility of Materials
• Learning from Burst Disk Failures
• Adequate Ventilation of Battery Charging Facilities
• Hydrogen Use in Anaerobic Chambers
• The Importance of Purging Hydrogen Piping and Equipment
• Working with Reactive Metal-Hydride Materials in the Laboratory
• Management of Change