What will certification entail? I'm envisioning an ln2 safety course and demonstration of whatever dispensation device is developed and installed. [[User:Dbever|Dbever]] ([[User talk:Dbever|talk]]) 10:09, 23 December 2013 (CST) | What will certification entail? I'm envisioning an ln2 safety course and demonstration of whatever dispensation device is developed and installed. [[User:Dbever|Dbever]] ([[User talk:Dbever|talk]]) 10:09, 23 December 2013 (CST) |