above, update the Approved Documents to include previous changes made to Approved Document B Volumes 1 and 2 and Approved Document 7 through the issue of amendments slips.
uchod yn diweddaru'r Dogfennau Cymeradwy i gynnwys newidiadau blaenorol a wnaed i Ddogfen Gymeradwy B Cyfrolau 1 a 2 a Dogfen Gymeradwy 7 drwy gyhoeddi slipiau diwygio.