Retail sale price valuation for imports set as deemed customs value, subject to government-allowed abatement by notification. The amendment deems the customs value of certain imported articles to be the retail sale price declared on the package where such declaration is required by law, less any abatement the Central Government may allow by notification; this applies to goods notified under the Central Excise mechanism or the Medicinal and Toilet Preparations Schedule, and where multiple retail prices are declared the maximum is taken.