Many sectors have sector-specific CA schemes. You may recognise the ones shown here.
Conformity Assessment Sector Schemes have the following general features. They:
- Aim at demonstrating conformity with standards that comply with their own internal codes of practice as well as international ISO/IEC standards, when these are applicable.
- Assure competence of certification processes through accreditation or a similar process, based on criteria defined by their internal codes and applicable requirements of ISO/IEC 17011.
- Operate in different segments of the market.
- Have potential to demonstrate their competence through a process akin to accreditation.

It is important to note that there is no overarching requirement for the accreditation body/process, even if compliant with ISO/IEC 17011, to be recognized by international bodies such as ILAC or IAF.