ACI 318-14 is the 2014 edition of the ACI 318 code, which was first published in 1956. The code has undergone several revisions over the years, with the most recent edition being ACI 318-19. However, ACI 318-14 is still widely used and referenced in the construction industry. The code provides minimum requirements for the design and construction of reinforced concrete structures, including buildings, bridges, and other infrastructure projects.