First off, welcome to the Cove...and to the wild and wonderful world of Quality Systems, too!
ISO 9001:2000 has 6 required procedures:
- Control of documents
- Control of records
- Internal audits
- Control of nonconforming product
- Corrective action
- Preventive action
There is, of course, the caveat of "...documents needed by the organization to ensure the effective planning, operatio and control of its processes..." (4.2.1 d).
8.5.1 Continual improvement states "...improve the effectiveness...through the use of the quality policy, quality objectives, audit results, analysis of data, corrective and preventive actions and management review."
No stated requirement for a procedure specifically for Continual Improvement, but the Quality Policy needs to be documented, the Quality Objectives need to be documented, audit results are to be recorded, the data being analyzed is most likely recorded somewhere, corrective and preventive actions require procedure(s) and records, and management review requires records....so there is still documentation that supports your quest for Continual Improvement.
My Organization addressed CI thusly...in our Quality Manual we state the tools that help us in the ongoing journey of Continual Improvement. It includes the items listed in Section 8.5.1 of ISO 9001:2000, but our own Management System tools such as Annual Action Plans, Key Indicators, and so on.