Section 70(a) in The Tamil Nadu Building and other Construction Workers (Regulation of Employment and Conditions of Service) Rules, 2006
(a)a lifting gear is initially tested for the manufacturer by a competent person, in a manner specified in Schedule-1 to these rules before taking into use or after undergoing any substantive alterations which renders its any part liable to affect its safety and such gear altered shall subsequently be re-tested for the use of its owner at least once in every five years;
