American Concrete Institute Launches ACI 323 PLUS — Digital Subscription To Low-Carbon Concrete Code

The American Concrete Institute (ACI) is proud to announce the release of ACI 323 PLUS, an annual digital subscription that provides interactive access to ACI CODE-323-24: Low-Carbon Concrete—Code Requirements and Commentary. This new subscription, built on the ACI PLUS Platform, delivers an interactive experience optimized for performance on desktop and laptop computers.

Designed to enhance how users engage with the Code, ACI 323 PLUS includes:

• Interactive in-document access to related resources and FAQs.

• Robust digital notetaking, including the ability to create up to ten unique sets of notes for personal use or sharing with other ACI 323 PLUS users.

• Chapter, section, and provision-based navigation.

• Screen capture functionality for quick reference and collaboration.

ACI CODE-323-24 introduces a carbon budget approach and emphasizes the use of Environmental Product Declarations (EPDs) for benchmarking, aiming to standardize methodologies for reducing carbon emissions in concrete construction. The Code covers cast-in-place concrete with specified compressive strength between 2500 and 8000 psi and is intended for jurisdictions seeking to adopt low-carbon concrete practices.

The Code can be adopted as a stand-alone standard or used alongside structural design codes or low-carbon material codes. It is presented in a format that allows for reference without change to its language, while the accompanying Commentary provides background, suggestions, and deeper insight into Code provisions.

In conjunction with this release, ACI is also offering On-Demand Course: ACI CODE-323: Low-Carbon Concrete Code, which explains the definition of low-carbon concrete, an overview of the new ACI Code 323, and the development and purpose of the Code in more depth.

To learn more and subscribe to ACI 323 PLUS, visit concrete.org.