Qualified Labourer

While clearing out some old paperwork today I came across my CSCS Card. This allowed me to work as a "Construction Site Operative" - e.g. a labourer. I needed to do something more skilled than that on a building site (mostly based in the site office), but the construction industry didn't have a category for it. The card expired some years ago.
Essentially, it was the proof that I knew about the hazards that there could be on a buiding site, all part of trying to kill fewer people in the cinstruction industry.