The following approaches to drafting the nec and ICE contracts are illustrated by the presentation of the circumstances in which the contractor is entitled to additional time and cost for the physical conditions. This practice note contains guidance on Mesne`s rights to use and occupation or benefits and how and when double rent or dual value can be invoked. Rights of use and occupancyA right to use and occupation is possible if the area is built without expressly agreeing that the absence of such a form is intentional. Clients often want to use their own contracting methods. Some, for example, will require that the contract be concluded as an act and, in this case, specific rules must be respected. In other parts of the world, other specific laws may apply to the registration of contracts. The NEC body has therefore left it to the parties how they wish to form their contracts. This does not apply to short contracts, as they apply to simple, easy work, delivery or services and, therefore, a simple offer and purchase agreement is generally appropriate. NEC3 has been confirmed by the Council of Construction Clients (formerly Public Sector Construction Clients` Forum), Crown Commercial Services, The Facilities Management Board of the Cabinet Office UK, The South African Construction Industry Development Board, The International Organisation for Standardisation (ISO), The Association for Project Management (APM) and The British Institute of Facilities Management (BIFM).  1. A well-known practice of cost advisors in London significantly increases the fees collected for NEC projects to cover the additional resources needed to manage aspects of the system`s costs2.
The large number of companies involved in a major construction project and the length of supply chains mean that collecting information on the costs of compensation events takes a long time. In most cases, the project manager must decide whether to make a change to the cost advisor`s estimates, which will be replaced in a timely manner by the actual costs. This practicality is at the failure of the NEC logic in terms of cost control and decision-making.3 Compensation events resulting from changes not attributable to the contractor are reimbursed at a fee and are not related to the pricing of offers. This means that the only basis for defiance is unreasonable. For example, it is not possible to monitor the workload for additional work, such as overtime, monitoring and breakdowns when other products are produced for other projects. The number of companies involved in a major construction project and the length of supply chains mean that collecting cost information about compensation events takes time. In most cases, it is up to the project manager to decide whether a waiver persists based on the cost advisor`s estimates, which will be replaced in due course by the actual costs.