Which agency's standards must structural concrete be designed in accordance with?

Structural concrete must be designed in accordance with the standards set by the American Concrete Institute (ACI). ACI provides comprehensive guidelines and specifications aimed specifically at the proper design, construction, and maintenance of concrete structures. These standards cover a wide range of factors, including material properties, structural design methodologies, and construction practices, ensuring that concrete is utilized effectively and safely in various applications.

Understanding ACI's standards is crucial for ensuring that the structural integrity of concrete elements is maintained, which directly impacts safety and durability. They are recognized industry-wide and frequently referenced in building codes and engineering practices, making knowledge of ACI vital for those involved in construction and design.