NEC4 Understanding the Activity Schedule

This episode covers the NEC4 activity schedule under Options A and C, explaining what it is, how it drives payments, and why the contractor should prepare it rather than the client. Ben Walker and Glenn Hide walk through the mechanics of correcting, revising, and changing the activity schedule, including two practical approaches for updating prices after compensation events. David Allen from CECA Southern adds a contractor's perspective on the financial and practical pitfalls of poorly structured activity schedules.

Presented By
Ben Walker
Ben Walker
Gather
Glenn Hide
Glenn Hide
GMH Planning
Key Takeaways

The contractor should prepare the activity schedule, not the client

Clients preparing the activity schedule risks misalignment with the contractor's delivery plan and cash flow needs. The NEC4 contract does not expect the client to produce it. If the client wants a tender comparison document, they should allow contractors to submit their own detailed activity schedule alongside it.

Under Option A, contractors only get paid for completed activities

There is no provision for part-percentage payments under Option A. A contractor who has finished 80% of a line item receives nothing until that item is fully complete. The solution is to break the activity schedule into suitably granular items from the outset to maintain healthy cash flow.

Compensation events must be agreed promptly to protect cash flow

Under Option A, compensation events only get added to the activity schedule once implemented. If agreement drags on, the contractor cannot be paid for work already done on that compensation event. Project managers should treat contractual timescales as maximums, not targets, and process compensation events quickly.

Option C activity schedules set the target but do not drive interim payments

Under Option C, the contractor is paid defined cost plus fee, not from the activity schedule. The activity schedule establishes the target price for the pain/gain share calculation. Despite this, parties should still keep the activity schedule updated to track their commercial position and avoid a widening gap between target and actual cost.

Session Transcript
Download PDF
Read More
Audience Q&A

Heading 1

Heading 2

Heading 3

Heading 4

Heading 5
Heading 6

Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur.

Block quote

Ordered list

  1. Item 1
  2. Item 2
  3. Item 3

Unordered list

  • Item A
  • Item B
  • Item C

Text link

Bold text

Emphasis

Superscript

Subscript

Audience Q&A

Excel / PowerBI
MCP Server
Aconex