b. Functions relating to registered building control approvers, including registration provisions, investigation, prosecution of offences and sanctions such as suspension or deregistration
b. Swyddogaethau sy'n ymwneud â chymeradwywyr cofrestredig rheolaeth adeiladau, gan gynnwys darpariaethau cofrestru, ymchwilio, erlyn troseddau a sancsiynau fel atal neu ddadgofrestru