http://www.mahjong-club.net/saikyosen/rule.htm

You are looking for "ダブロン、トリプルロンなし。頭ハネ制度（発声なき行為は無効）。"

Or, 'There are no douple and triple rons. Head bump is the rule (invalid calls are illegal).

You might want to re-read your rules.

So you can have either the haiteihai or the rinshanhai, but not both. Simply using the term "last tile" could result in some confusion, or even improper scoring.

I believe you can only claim haitei on the last tile of the regular wall, not the dead wall tile that was drawn when kong was declared. I believe the ruling makes it so that the last regular wall tile is effectively NOT used, and thus haitei cannot be declared.

If you called Kan on the 2nd to last tile in the wall, and Rinshan'd on it, by their wording it seems you could also claim Haitei.
Hmmn, this way the dead wall maintains its 14 tiles. If you could call a Kan on the Last Tile, the dead wall wouldn't keep its 14 tiles. ... Wow, talk about a slim case. Easier to just remember Section 11, rule 4 at that point. NO STACKING~.

but this clarifies further
"4. WINNING FROM A SUPPLEMENTARY TILE does not combine with WINNING ON THE LAST TILE."
Precisely what I had been wondering about.

Thank you for your translation efforts!.

@Rider88: There is no Double Ron in these rules. This is one of the things which generally varies from place to place. The others tend to be whether or not there is a DEALER REPEAT in case of tenpai, DRAWN GAMEs happening before the round is over, and red fives.

Kan dora indication, more often than not, follows the pattern in the above rules. While exceptions exist, they aren't particularly significant--for the most part it doesn't matter when you flip the tile over.

@Joseph Edwards: They write their rules different from the way Westerners would, yes.

@Kicchiri: While 10-20 and 10-30 umas are both common, I find the latter to be significantly more prevalent.

@Eric: You mean houtei, right? This actually varies, although most places say that they do not go together.