Tapping board - A tapping board and a fixed top rail must be included on the directional ends, the tapping board being 150mm deep and as near to the ground as possible.
Bwrdd tapio - Rhaid cynnwys bwrdd tapio a rheilen uchaf sefydlog ar y pennau cyfeiriadol, a rhaid i'r bwrdd tapio fod tua 150mm o drwch ac mor agos i’r ddaear â phosib.