Each jurisdiction sets its own rules and regulations, and while these tend to hit the same baseline standards, there are some specific differences.
http://forum.spolokmedikovke.sk/viewtopic.php?f=21&t=912333
http://www.prepody.ru/topic94898.html
https://www.yunpan.club/forum.php?mod=viewthread&tid=164828&extra=
https://www.ww2.site/forum/viewtopic.php?t=113716
http://horsecity.ru/phpBB3/viewtopic.php?f=22&t=278085
http://www.prepody.ru/topic60645.html
http://forums.shlock.co.uk/viewtopic.php?f=2&t=446861
http://www.prepody.ru/topic68673.html
https://debate.socialism.nl/forum/showthread.php?tid=105185
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http://forum3.bandingklub.cz/viewtopic.php?f=30&t=1468802
https://debate.socialism.nl/forum/showthread.php?tid=178056
http://horsecity.ru/phpBB3/viewtopic.php?f=46&t=176803
http://forum3.bandingklub.cz/viewtopic.php?f=40&t=1096916