NEC3 vs NEC4: Option A vs B Explained – Payment, Risk & ExamplesBy wisdomwaveshub.com / July 19, 2025 Table of Contents Toggle NEC3 vs NEC4: Option A vs Option B 💼📋 Pricing Model🔁 Compensation Events🕒 Payment Logic📋 Pricing Model🔁 Compensation Events🕒 Payment LogicTerminology & Structural Changes in NEC4 📜Clause References and Practical Implications 🧐Clause 11 – PWDD & “The Prices” Explained 📖🔐 Lump Sum Logic📉 No Part Payments🧾 The Prices📊 Rate-Based Logic💵 Proportional Payment📄 The PricesOther Definitions – Clause 11 🔍🧾 What is “Defined Cost”?✨ NEC4 UpgradeClause 50 – Payment Assessments & Timing 💰Clause 60 – Compensation Events (Risk, Changes & Relief) 🔀Clause 63 – Assessment of Compensation Events 🧮Contractor’s Cash Flow vs Employer’s Risk: Option A vs Option B 💱⚖️Examples in Practice 🏗️🌉Key NEC4 Updates/Improvements over NEC3 🔧Conclusion: Option A vs Option B Under NEC4 Recent Visitors: 352 NEC3 vs NEC4: Option A vs B – Discover key contract differences, payment flows, risk, and real-world examples. Make informed choices for your project! Membership Required You must be a member to access this content. View Membership Levels Already a member? Log in here