SECTION 62

A contract may only be awarded by mutual agreement in the specific cases listed below: a) for works, supplies, or services undertaken within the framework of research, studies, testing, experimentation or development which may only be entrusted to companies or service providers that must be chosen because of their particular speciality, knowledge, or aptitudes. b) for replacement of defaulting entrepreneurs or suppliers. c) for works, supplies, or services and intellectual services which, for reasons of extreme urgency caused by unforeseeable events, cannot be subjected to the time-limits of the procedure of an invitation to tender. d) for needs that can only be satisfied by a service requiring the use of a patent, a process, know-how, or of an entity in charge of the management and marketing of a licence or of exclusive rights held by a single entrepreneur, a single service provider, or a single supplier.