Chapter 4 of Part 3 of the 2021 Act covers meetings convened by relevant authorities, as well as by certain other bodies and organisations.
Mae Pennod 4 o Ran 3 o Ddeddf 2021 yn trafod cyfarfodydd sy’n cael eu galw gan awdurdodau perthnasol, yn ogystal â chan gyrff a sefydliadau penodol eraill.