Article 71
United Kingdom
1.
The documents relating to the invitation to tender shall clearly state whether a firm, non-revisable price must be quoted.
2.
If that is not the case, the documents relating to the invitation to tender shall lay down the conditions and/or formulas for revision of prices during the lifetime of the contract. In such cases the contracting authority shall take particular account of:
(a)
the object of the procurement procedure and the economic situation in which it is taking place;
(b)
the type of tasks and contract and their duration;
(c)
its financial interests.