This document specifies requirements for a quality management system when an organization:
a)    needs to demonstrate its ability to consistently provide products and services that meet customer and applicable statutory and regulatory requirements, and
b)    aims to enhance customer satisfaction through the effective application of the system, including processes for improvement of the system and the assurance of conformity to customer and applicable statutory and regulatory requirements.
All the requirements of this document are generic and are intended to be applicable to any organization, regardless of its type or size, or the products and services it provides.
NOTE 1    In this document, the terms “product” or “service” only apply to products and services intended for, or required by, a customer.
NOTE 2    Statutory and regulatory requirements can be expressed as legal requirements.
This document specifies the requirements for a railway quality management system (RQMS)
—    applicable throughout the whole supply chain of the railway sector related to industrial products and services,
—    providing continual improvement, emphasizing defect prevention and defect reduction in the supply chain, and
—    enhancing and sustaining product quality, including its safety aspects.