MAC is back At the end of February, the Migration Advisory Committee (MAC), the Government’s independent advisor on immigration policy, launched a Call for Evidence (CfE) to begin its latest review of the UK’s Shortage Occupation List (SOL). The SOL is the official list of ‘skilled’ occupations (presently defined as occupations at RQF3 or above) that have been assessed by the MAC to be ‘in shortage’ in the UK and whose shortage is ‘sensibly’ addressed through the recruitment of overseas workers.