Change (also known as a Variation) meaning

In practice, a change (also called a variation) is any agreed or instructed alteration to the contractual scope of works or services, such as adjustments to design, quantity, quality, sequencing, methodology or timing. It is a descriptive term rather than a statutory one; its legal effect depends on the contract’s variation or change control provisions and, in construction and services contexts, relevant case law. Changes are usually managed under a Change Control Procedure or a project-specific change protocol, which sets the parameters for making Changes (authority to instruct, notice, evaluation of time and cost, pricing rules, records, approval steps and dispute routes). A Change may add, omit or substitute work, and typically affects price, programme, risk allocation and payment. Usage is broadly consistent across England & Wales, Scotland, Northern Ireland and Ireland, though terminology varies: JCT/SBCC and RIAI refer to Variations, NEC uses compensation events, and Irish Public Works Contracts provide for change orders. Outsourcing, technology and facilities management contracts commonly include detailed change control schedules. Key drafting points include clear instruction rights, valuation methodology (rates/schedules or cost-based), assessment of delay and loss and expense, and controls on unauthorised scope change to avoid breach and disputes.