ISO 9000 is an ISO standard for Quality Management Systems. ISO 9000 was developed from the British Standards Institution's BS 5750. The ISO 9000 standard is maintained by ISO (the International Organization for Standardization) and administered by accreditation and certification bodies. It is widely used in manufacturing, although high costs and difficulties with implementation have led to many companies using alternatives such as IC9700, or IC9200, both of which are issued by the International Charter, or their own specific in-house 'standard'. Some countries re-label ISO 9000 as a national standard. (e.g. IR 9000 in Iran). It should be emphasised that ISO 9000 does not guarantee the quality of the end products - rather, it certifies that the correct manufacturing process is being carried out.