During the Second World War, what jobs in the United Kingdom meant that their holders were exempt from being called up for military service?
According to Wikipedia, jobs that were exempted in the UK were coal mining, ship building and engineering related activities. However,they could still join the Home Guard.
Great question. According to the British parliaments website, the majority of those who got exempted were either medically unfit or worked in key industries. The link to the website is below.