In July 2017, 500 leaders of One LA-IAF organized a public assembly with Los Angeles Mayor Eric Garcetti and secured his support for the 'Do No Stand Idly By' (DNSIB) campaign for gun safety.

The 'Do Not Stand Idly By' campaign is a market-based approach to pressure gun manufacturers to prevent illegal gun sales and utilize gun safety technologies.

After One LA called on the Mayor to “make sure we have a city of safety, a city of justice and a city of responsibility,” Mayor Garcetti committed the City of Los Angeles to leverage its purchasing power to encourage the development of safer (i.e. child-proof and theft-proof) guns among manufacturers and to continue its efforts to compel greater responsibility among gun sellers and owners. 

In securing Mayor Garcetti's pledge to support the DNSIB campaign, One LA leaders enabled Los Angeles to become the first major city in the United States to support the campaign. , Houston became the second major American city to sign on, at the urging of sister organization The Metropolitan Organization.

'Do Not Stand Idly By' is a campaign initiated by faith leaders and citizens from sister organizations affiliated with the Metro Industrial Area Foundation.