All TB laboratories, regardless of the procedures being undertaken, should enact a set of essential biosafety measures to minimize risks. These measures affect:
1. codes of practice
3. laboratory design and facilities
4. health surveillance
6. waste handling.
Depending on the specific tests conducted by the laboratory and the results of a procedural risk assessment, additions and modifications to the measures described below may be made to accommodate different levels of risk. (See Chapters 3, 4 and 5 for more details.).