The purpose of this publication is to provide guidance which, within the context of a mechanization strategy, will help governments to reach decisions regarding rehabilitation programmes, and to implement them when appropriate. Unfortunately, it is not possible to establish precise criteria that can be universally applied to planning and operating such programmes; there are too many variables from one situation to another. Nevertheless, there are a number of overall considerations and procedures that should be taken into account when analysing the local situation and when planning and launching rehabilitation programmes. This publication describes these considerations and procedures. It also provides information, of a case study nature, on some past and ongoing machinery rehabilitation programmes.