- Laboratories in accordance with the requirements of BS EN ISO/IEC 17025:2005
- Medical Laboratories in accordance with ISO 15189
- Medical Reference Measurement Laboratories in accordance with ISO 15195
- Certification bodies in accordance with the requirements of: ISO/IEC 17021, EN 45011 (ISO Guide 65), ISO/IEC 17024, ISO 14065 and EU Council Regulation (EC) No 1221/2009
- Inspection bodies in accordance with the requirements of ISO/IEC 17020:1998 (EN 45004)
- Proficiency testing schemes in accordance with the requirements of ISO/IEC 17043
- Reference Material Producers in accordance with ISO Guide 34