ሠራተኛው የተመደበበትን ሥራ ለማከናወን ችሎታው ቀንሶ ሲገኝ ወይም የሥራ ችሎታውን ለማሻሻል አሠሪው ያዘጋጀለት ትምህርት እድል ባለመቀበሉ ምክንያት ሲሰራ የቆየውን ሥራ ለመቀበል የሥራ ችሎታ የሌለው ሆኖ ሲገኝ ወይም ትምህርት ከተሠጠው በኋላ አስፈላጊውን አዲስ የሥራ ችሎታ ለመልመድ የማይችል ሲሆን፣
a) the worker's manifest loss of capacity to perform the work to which he has been assigned; or his lack of skill to continue his work as a result of his refusal to take the opportunity of training prepared by the employer to upgrade his skill or after having been trained, his inability to acquire the necessary skill;