Section 2(1)(a) in Tamil Nadu Laws (Special Provisions) Act, 2007
(a)"building rules, regulations and bye-laws" means rules, regulations and bye-laws made under the Chennai City Municipal Corporation Act, 1919 (Tamil Nadu Act IV of 1919), the Tamil Nadu District Municipalities Act, 1920 (Tamil Nadu Act V of 1920) and the Tamil Nadu Panchayats Act, 1994 (Tamil Nadu Act 21 of 1994), as the case may be, relating to buildings;