This bill, titled the "Climate Pollution Standard and Community Investment Act of 2025," amends the Clean Air Act to establish a comprehensive program for phasing down greenhouse gas emissions, aiming for net-zero emissions by 2050. It introduces a new Title VII to the Clean Air Act, creating a Climate Pollution Reduction Program that sets aggregate enforceable targets for covered entities, including electricity sources, fuel producers/importers, and various industrial sectors. These targets mandate a 5% reduction below 2023-2025 levels by 2027, a 50% reduction below 2005 levels by 2030, and a 90% reduction by 2050, with annual declines thereafter. The core mechanism is an emission allowance system, where each allowance authorizes the emission of one ton of carbon dioxide equivalent, or 0.5 tons in designated Cleaner Air Communities. Covered entities must surrender sufficient allowances to match their emissions over three-year compliance periods, with penalties for non-compliance. The Administrator will auction allowances quarterly, with a minimum price that increases annually, and establish cost containment and emissions containment reserves to manage price volatility. A significant portion of allowance proceeds and allocations are directed to various funds and programs. Allowances are allocated to States and Indian Tribes for consumer benefits like energy efficiency, low-emission alternatives, or direct financial assistance. Energy-intensive, trade-exposed industries receive output-based allocations to mitigate competitive disadvantages. Proceeds from auctioned allowances fund a Clean Energy Rebate Program for low-income households, administered by the Treasury Department. Other proceeds support State, Territorial, and Tribal governments for pollution reduction, clean energy, and climate adaptation projects. The bill also establishes a Worker and Community Assistance Fund to support communities and workers impacted by the transition to a clean energy economy. This fund finances an Office of Energy and Economic Transition to coordinate federal support and conduct impact studies. It provides direct assistance to adversely affected communities through revenue replacement for local governments experiencing tax base loss due to fossil fuel industry closures. Community-Based Transition Hubs are established to offer technical assistance, job training, and social services to these communities and workers. Adversely affected workers are eligible for wage adjustment assistance, health insurance continuation, and educational benefits. The bill also creates a Cleaner Air Community Fund to provide grants for enhanced air pollution monitoring, emissions reduction plans, and community-based health services in disproportionately impacted areas. A Negative Emissions Activities Fund incentivizes carbon removal and sequestration through contracts with producers, particularly in agriculture and forestry, prioritizing high-quality projects and beginning/socially disadvantaged producers. An Energy Innovation Fund supports research, development, and demonstration of clean energy technologies. To address carbon leakage , an International Reserve Allowance Program requires importers of certain goods to submit allowances, with exemptions for goods meeting specific emissions benchmarks or from least developed countries. This program ensures that imported goods face similar carbon costs, with proceeds contributing to the Clean Energy Rebate Program and other funds. The bill mandates labor standards , requiring prevailing wages for projects funded by allowance proceeds, and establishes an Advisory Board and an Interagency Working Group for market oversight.