Legal Metrology Act reference replaces Standards of Weights and Measures in central excise law, updating statutory reference. Section 4A of the Central Excise Act is amended to substitute the words and figures 'Standards of Weights and Measures Act, 1976' with 'Legal Metrology Act, 2009', the substitution to be deemed effective from the stated commencement date, aligning the Act's reference with the repealing statute and maintaining regulatory continuity.