ISO (The International Organization of Standardization)
publishes thousands of standards. Some of these are Management
Systems Standards that a company can get Certified or Registered
to. ISO 9000 and ISO 14000 are both Management Systems
Standards.
ISO 9001 is a Quality Management System Standard
ISO 14000 is an Environmental Management System Standard
ISO 22000 is a Food Safety Management System Standard
Well there are ISO certifications out there that are required to
have in an organization in order to continue their business work
flow since most set ISO standards for an industry often becomes law
later on. ISO 14000 family of standards cover the environmental
aspects while ISO 9000 family of standards cover the quality
management aspects in ISO.