Those commonly used include the powers in sections 111, 142, 144 and 145 of the Local Government Act 1972; but there are several others.
Ymhlith y rhai a ddefnyddir yn aml y mae’r pwerau yn adrannau 111, 142, 144 a 145 o Ddeddf Llywodraeth Leol 1972 (“Deddf 1972”); ond ceir nifer o rai eraill.