Contract amendments are usually added into model contracts to deal with project-or client-specific requirements or risks, which are not covered by the main contract terms. In NEC contracts, these are known as Z-clauses, while for JCT contracts these are typically done through a Schedule of Amendments.
Contracting authorities should use the standard 'boilerplate clauses' (also known as model clauses) produced by IPA and CCS to drive consistent, standard contract variations covering non-contentious amendments commonly included in public procurement.
Any clauses that do not apply to a specific contract should not be included. Changes should not be made to individual boilerplate clauses. The boilerplate clauses will be updated to include the new policies set out in this Playbook, and further support is available from IPA and CCS.