UK: When Is Having The Last Word A Bad Idea?

Last Updated: 6 June 2018
Article by Ellie Spencer

When your contract contains a clause excluding oral variations...

A recent decision of the Supreme Court in Rock Advertising Limited v MWB Business Exchange Centres Limited brings an end to the long standing debate over whether clauses excluding oral variations to a written contract (so called "NOM" clauses – "no oral modification") are valid.

This is a decision which will have far reaching practical and commercial effects as NOM clauses are very common in commercial contracts.

Introduction to NOM clauses

Save for some special cases, it is a basic principle of contract law that contracts need not be written down in order to take effect. Contracts can be made by conduct or by verbal agreement. A variation of an existing contract is no more than the creation of a new contract and the same rules apply. To give a simple example, a party with a contractual obligation to deliver goods to another by a specific date may agree an extension to that deadline with the intended recipient without necessarily needing to write that variation down.

This level of flexibility to enter into contracts may be attractive in certain commercial relationships, but in others it may produce undesirable uncertainty. Larger organisations may not be able to monitor and control all verbal communications between its employees and third parties. The ability to vary contracts orally could lead to misunderstandings or undesirable changes being agreed that are not properly monitored. This may leave it difficult for companies to ensure full compliance with contractual obligations and the possibility of oral variations lends itself open to abuse.

The principle reason for the long standing debate over whether NOM clauses can be valid is that it has been considered that they restrict freedom to contract. On the one hand, NOM clauses are useful to businesses, but on the other they set rules potentially restricting the parties' ability to vary a contract – a concept with which the courts have historically been uneasy. The Supreme Court had to wrestle with these arguments and came to a conclusion which was not entirely expected.

Background

MWB operates serviced offices in London and it granted a licence to occupy office space to Rock in August 2011. The Licence contained the following clause:

"This Licence sets out all of the terms as agreed between MWB and Licensee. No other representations or terms shall apply or form part of this Licence. All variations to this Licence must be agreed, set out in writing and signed on behalf of both parties before they take effect."

Rock fell into arrears, but had a telephone discussion with MWB in which it proposed a revised schedule of payments. A dispute arose about whether there was a binding agreement over the revised payment schedule: if there was an agreement then MWB would be worse off than if Rock had paid in accordance with the Licence. It was part of MWB's case that the above NOM clause prevented the Licence from being modified over the telephone.

The County Court held that the variation had been agreed, but that it was ineffective because it was not recorded in writing in accordance with the NOM clause. Rock Advertising appealed. The Court of Appeal overruled the County Court, finding that the oral agreement to revise the payment schedule also amounted to an agreement to dispense with the NOM clause. It held that MWB were bound by the variation.

It did not stop there though as MWB then appealed and the Supreme Court in turn overruled the Court of Appeal. It decided that NOM clauses were of legal effect and in this case the variation was not valid.

Practical Consequences

The Supreme Court's decision is, on balance, a welcome one. NOM clauses have obvious advantages and are often included in commercial agreements to provide certainty and a formal mechanism for contract variations so all parties know where they stand. The previous uncertainty as to whether a NOM clause had any legal effect simply served to increase uncertainty.

Parties are of course not in any way prevented from agreeing a variation, with or without the existence of a NOM clause. However, care should be taken to ensure that any agreed variation is compliant with any formalities required by a NOM clause. NOM clauses themselves may be dispensed with or varied by the parties by properly recorded agreement should it make good business sense to do so, be it permanently or temporarily.

A key lesson for businesses discussing potential contract variations with their counterparts will be to always check the small print – does the contract contain a NOM clause? If so, if time is of the essence and a variation is urgently required, consideration should be given to whether the NOM clause also needs to be expressly waived by agreement for that specific variation. However, where time permits it will always be preferable to comply with any formality restrictions set out in the NOM clause to ensure that a variation is valid.

For those entering into new contracts and considering the inclusion of a NOM clause, this decision increases the need to ensure that NOM clauses are carefully worded so as to leave no uncertainty as to what the requirements for a valid variation will be. For example, if variations are to be made "in writing", care should be taken to remove any doubt as to what "in writing" actually means – whether, for example, a signed agreement is required or whether an email will suffice.

Finally, if a dispute has arisen over whether an oral variation has effect in spite of the existence of a NOM clause, it is a good idea to seek legal advice.

The content of this article is intended to provide a general guide to the subject matter. Specialist advice should be sought about your specific circumstances.

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