Councils must adhere to rules in legislation about the appointment of chairs to scrutiny committees (s-68-75, Local Government (Wales) Measure 2011).
Rhaid i gynghorau lynu wrth reolau mewn deddfwriaeth ynghylch penodi cadeiryddion i bwyllgorau craffu (a-68-75, Mesur Llywodraeth Leol (Cymru) 2011).