1.7 You must maintain accurate and up to date records relating to your building control functions for at least 15 years from the work completion date, or longer if mandated elsewhere.
Rhaid cadw dogfennau gwreiddiol sy'n ymwneud â gweithredu'r prosiect hwn a'i ariannu am o leiaf chwe blynedd ar ôl y dyddiad talu terfynol i chi mewn perthynas â'r prosiect hwn.