<h1>Certified low-emission 'green crackers' approved for limited sale and use; manufacturers switch to new formulations nationwide</h1> The apex court authorized use of certified low-emission 'green crackers' in Delhi-NCR subject to time and sale-window restrictions, prompting most manufacturers in a major production hub to switch exclusively to the new formulations. A national research institute developed additives that reduce emissions and collaborates with industry on testing and registration; a public-private testing facility was established with shared funding. Trade representatives say small illegal producers still make traditional crackers, but large-scale manufacturers and distributors have adapted, and interstate distribution has eased under the GST regime. Manufacturers report ongoing research aiming for further emission reductions and continued safety validation.