Cleanroom users in safety gownsAll users of the NDNF must attend mandatory safety orientation and training sessions appropriate for the equipment to be used. Users must follow laboratory procedures and protocols at all times. Assignment of processing time on the equipment is on a "first come, first served" basis, except for systems with a posted formal sign-up procedure. Processes or experiments which will require the use of a system for an extraordinary amount of time must be scheduled with the Facilities Manager or the Laboratory Director, as appropriate.