Sorry to resurrect, but with the long nights and short days of January, this is of more practical concern than back in June. I just gently enquired whether there is any chance in the future for PCL at Kemble (sorry, Cotswold), and was told rather emphatically that this is TOTALLY ILLEGAL in the UK, even for unlicensed airfields. According to the AIP entry for Kemble, "Aerodrome lighting does not conform to CAP168 and is not available for licensed operations", yet lighting can be used unlicensed by coughing up £150+ for someone in the tower to switch it on.
So there we have it: the lighting does not conform to CAP168, but can be used, whereas PCL also does not conform to CAP168, and is therefore illegal....
Can anyone come up with some legal obstacle other than CAP168? Of course, there are other obvious commercial reasons why airfields might not want PCL (for which I have some sympathy), but it would be good to know the truth why something almost universally available in the US is (almost?) unavailable in the UK.