This letter, signed by dozens of California environmental organizations including SPUR, urges Governor Newsom and the California Air Resources Board to remove a proposed Manufacturing Decarbonization Incentive from the Cap-and-Invest rulemaking, warning that creating 118 million additional allowances outside the emissions cap would undermine California's 2030 climate targets. The groups also argue the proposal would shift billions of dollars away from household affordability programs and ratepayer relief toward subsidies for polluting industries, and that the rushed 15-day amendment process violates the Administrative Procedures Act.