40
Laboratory Response Network 
For Bioterrorism
Level-A Lab
  Use Class II Biosafety Cabinet
 A - Rule-out and forward organisms
Level B Lab 
BSL-2 facility + BSL-3 Safety Practices
 B - Limited confirmation and Transport
Level C Lab
 BSL-3
C - Molecular assays, reference capacity
D - Highest level characterization (Federal)
Level D Lab
BSL-4