Enlarge / A West Covina firefighter pulls a hose away from a horse barn that burns as the Mendocino Complex Fire moves through the area on July 31, 2018, in Lakeport, Calif. (credit: Getty Images | Justin Sullivan) The US mobile industry's top lobbying group is opposing a proposed California state law that would prohibit throttling of fire departments and other public safety agencies during emergencies. As reported yesterday by StateScoop, wireless industry lobby group CTIA last week wrote to lawmakers to oppose the bill as currently written.