318 Building Code Portal

ACI 318 Building Code Portal

The American Concrete Institute has officially released the updated ACI 318-19: Building Code Requirements for Structural Concrete and Commentary.

This edition is the first edition of ACI 318 in five years and the first update since the reorganization of the code in the 2014 edition. This latest edition includes new and updated code provisions along with updated color illustrations for added clarity. 

Digital and print formats of ACI 318-19 are currently available in English and inch-pound units. A Spanish edition is also available in digital format. SI units and other languages to follow.  ACI 318-19 is also included in the online subscription to the ACI Collection of Concrete Codes, Specifications, and Practices.  

Some of the significant changes to 318-19 are centered around topics such as: Higher reinforcing steel yield strengths for many applications and the associated design provision changes; the addition of shotcrete provisions; deep foundation provisions; seismic requirements for deep foundations and other applications; vertical seismic motions; nonlinear analysis for seismic design; modification to development length equations; and updated shear design provisions and equations. Learn more through recent articles in Concrete International magazine:


ACI 318-19 Seminars

ACI will be hosting over 20 seminars beginning in Fall 2019 in various locations for professionals who wish for more information about the updated code.



References in 318

Search for and access many free documents referenced in the commentary section of the 318 code.


318 Building Code Page

Visit the Topics in Concrete - 318 Building Code page for a complete listing of all ACI resources on 318 including technical articles, news items, & related committees>