Section 44 in West Bengal Municipal (Building) Rules, 2007
44. Rat-proofing.
(1) Every building or part thereof, designed or intended for use of dwelling, storage or sale of food stuff, shall conform to the requirements specified in sub-rules (2) and (3).(2)Every such building, unless supported on posts, shall have continuous foundation walls, extending from at least sixty centimetres below ground level, or shall have continuous floor of masonry or reinforced or other equal rat-proof material or materials as approved by the Board of Councillors.(3)All openings in such foundations or floors, windows and drains and all junctions between foundation walls and building walls shall be effectively rat-proofed, windows and doors shall be tight-fitting, other openings shall be securely covered with rat-proof screening or shall be tightly closed with metal sheeting, concrete or other equal rat-proof materials as may be approved by the Board of Councillors.
