The Construction industry occupies a very critical position in the Nigerian economic
landscape. It is a major contributor to the nation's GDP and one of the biggest employer of
labour particularly in the artisanal level. However, there is the prevalence of skills gap in
the sector which has impacted on the quality of our buildings. The need to improve the
quality of works produced by Nigerian artisans and craftsmen is the primary reason for the
development of the National Occupational Standards (NOS) for Building Trades in Nigeria.