The AASHTO Guide for Reducing the Cradle-to-Gate Embodied Carbon Emissions of Paving Concrete, First Edition (2025), presents strategies for lowering the embodied carbon of concrete used in highway paving. The guide defines the cradle-to-gate boundary and identifies where emissions arise in producing paving concrete. It then sets out strategies for material selection and mixture proportioning that reduce carbon emissions while maintaining the performance required of the mixture. Although the emphasis is on paving mixtures, the guide notes that many strategies can be extended to concrete for structural and ancillary applications. The document was prepared as a resource for transportation agencies and contractors. It is intended for materials engineers, mix designers, and contractors seeking practical approaches to reducing the carbon footprint of paving concrete.