Synopsis As Introduced Amends the Department of Transportation Law of the Civil Administrative Code of Illinois and the Capital Development Board Act. Requires the Department of Transportation and the Capital Development Board to develop policies regarding maximum acceptable global warming potential for specified eligible materials used in public projects. Provides for review and adjustment of the respective policies. Provides requirements for contractors awarded public project contracts. Requires the Department and the Board to strive to achieve a continuous reduction of greenhouse gas emissions over time. Provides for annual reporting requirements by the Department and the Board. Defines terms. Effective immediately.