https://www.mercurynews.com/2019/09/17/san-jose-could-become-largest-u-s-city-to-enact-natural-gas-ban/ > San Jose is set to become the largest city in the United States to ban natural gas from many new homes in direct contrast to the federal government’s rollback of environmental regulations. > On Tuesday, the City Council approved a proposal from Mayor Sam Liccardo and four of his fellow council members to create an ordinance barring natural gas in new single-family homes, low-rise multifamily buildings and detached granny flats beginning next year.