Outside of participation in education programmes, there is always a range of practicalities, barriers, imperatives and sensitivities associated with recognising and certifying workers' knowledge. The particular country and institutional context often shapes many of these factors, such as the standing of the work, its affiliation with other kinds of work, the status of workers, their need for recognition and certification, the kinds of institutions that provide assessment processes and the degree by which there are bases for workers' knowledge to be recognised and certified. These factors play out in different ways for particular kinds of workers. Perhaps there is no cohort of workers for whom the recognition and certification of knowledge is more important than those who lack them and employed in low status work. Yet, at the same time, there are often greater barriers for these kinds of workers to having their skills assessed and recognised. For instance, the very benchmarks required for recognising and certifying the kinds of skills which have been learnt wholly through work and outside of educational provisions may not exist. Then, there can be the societal sentiments associated with different kinds of work and views that such work is of low worth. And, even if recognised and certified in some way, this work may still remain largely unworthy, and perhaps barely legitimate. In addition, such workers often find themselves in circumstances in which few, if any, organisations or agencies will promote their interests, let alone push for effective recognition and certification of their skills. This chapter seeks to consider how these factors play out in particular national contexts and how the practicalities, barriers, imperatives and sensitivities associated with recognising and certifying workers' knowledge might be confronted and redressed. The overall aim is to identify means by which the recognition of such workers' knowledge might progress in situations where many workers lack that certification and remain disadvantaged in some ways by that situation. Yet, beyond the mechanisms considered for providing such recognitions there are broader issues associated with the relative societal standing of occupations that also shapes the worth of these mechanisms and the recognitions they can provide.