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While lawyers might be tempted to groan every time another authority is added to the mass of judicial guidance on the interpretation of provisions in a contract, decisions that consider the meaning of commonly used or well-known provisions are to be welcomed by practitioners and the industry alike. Such a decision has recently been handed down by Joanna Smith QC, sitting as a deputy judge in the Technology and Construction Court in the case of Network Rail Infrastructure vs ABC Electrification Ltd [2019] EWHC 1769 (TCC). Not only does the decision confirm that courts will continue to prioritise the 鈥渘atural and ordinary鈥� meaning of words used by parties, it serves as a warning to contractors who could potentially be subject to extensive disallowed cost deductions. 

The resulting definition of disallowed cost in the parties鈥� contract was a very wide one that seemingly permitted deductions, no matter how trivial or inconsequential the contractor鈥檚 breach 

Network Rail engaged Costain to carry out upgrade works on the West Coast Mainline. The contract incorporated the ICE Conditions of Contract, Target Cost Version, First Edition, together with a schedule of so-called 鈥淣R12鈥� amendments used by Network Rail. The contract was subsequently novated from Costain to ABC. As is common in target cost contracts, ABC was entitled to be paid based on the cost of works it carried out, less any 鈥渄isallowed cost鈥�. The particular definition of disallowed cost in question was introduced by the NR12 amendments and provided that 鈥渁ny cost due to negligence or default on the part of the contractor in his compliance with any of his obligations under the contract and/or due to any negligence/default on the part of the contractor鈥檚 employees, agents, subcontractors or suppliers in their compliance with any of their respective obligations under the contracts with the contractor鈥� would be disallowed.

The employer鈥檚 representative had identified more than 拢13m as disallowed cost, resulting from ABC鈥檚 alleged breaches in failing to complete the works on time. ABC objected, contending that, to deduct disallowed cost, the breach had to be 鈥渟erious鈥�, or 鈥渟ignificant鈥�, or 鈥渄eliberate鈥�, or 鈥減ersistent鈥� (though throughout the case ABC had put the argument in a number of different ways). In the end, it was Network Rail that commenced Part 8 proceedings, seeking, among other things, a declaration that the definition of disallowed cost included any failure by ABC to comply with its obligations under the contract.

Having considered the well-known authorities on contractual interpretation, including the recent decisions of the Supreme Court in Arnold vs Britton [2015] AC 1619; [2015] UKSC 36, and Wood vs Capita Insurance [2017] AC 1173; [2017] UKSC 24, the judge reiterated that the starting point was to give the words their natural and ordinary meaning. In this case, a 鈥渄efault鈥� was a failure to comply with any legal requirement or obligation in the contract. Nothing in the remainder of the contract or the factual and commercial background required the court to depart from this meaning, nor was this a case where the court was faced with two conflicting interpretations that required it to identify the one that accorded with commercial common sense. In any event, the judge was unconvinced that ABC鈥檚 interpretation did reflect such common sense. The judge also noted the difficulty in pinning down the exact restrictions on the provision ABC sought, noting that a number of different alternatives had been suggested. 

Network Rail was accordingly granted the declarations it sought. 

Three key observations on this case can be made:

• The resulting definition of disallowed cost in the parties鈥� contract was a very wide one that seemingly permitted deductions, no matter how trivial or inconsequential the contractor鈥檚 breach. While that may have been consistent with the words as drafted (remember, these were Network Rail鈥檚 amendments), it is unlikely that ABC had anticipated such a result at the outset. The amendments incorporating the provision had the effect of changing the entire risk profile under the ICE Conditions, which is probably not what ABC had in mind when it accepted the novation. 
• In a similar vein, it was arguably a tactical masterstroke by Network Rail to commence proceedings itself in Part 8, rather than waiting for ABC to challenge the disallowed cost. Doing so meant that the case focused solely on the interpretation of the words used, without involving consideration of some of the actual, real-life disallowed cost deductions that ABC had been subjected to. 
• Does the fact that the disallowed cost provision in this case was a specific amendment to the standard form limit the application of this judgment? On one view, yes 鈥� but disallowed cost provisions are commonplace and appear in a number of standard forms, including the NEC contract suite. They are also frequently the subject of extensive negotiation and amendment by the parties, such is their importance in open-book contracting. Parties on all sides of the debate would be well advised to be aware of the potential consequences of making such amendments, given the court鈥檚 preparedness to interpret them literally. 

All in all, the case does demonstrate that the more textual approach to interpretation of recent years can have actual consequences, rather than being nothing more than an abstract lawyers鈥� debate. At the same time, it provides a salutary reminder of the potential problems parties can store up for themselves when they conclude a contract based on both a standard form and bespoke amendments.

Sir Robert Akenhead is an arbitrator, mediator, DRB member and adjudicator at Atkin Chambers. He was assisted in the writing of this article by David Johnson, a barrister at Atkin Chambers