IES products vary considerably in their support for building codes. Where applicable all products support IBC and ASCE 7 for load combinations, as well as the USA material specifications from AISC, ACI, NDS, ADM, MSJC and AISI/NAS. Some products offer Canadian load combinations (NBC) and material specification (CSA) support. For specific details, please look at the product's feature list on the web site or Help within the specific product you are interested in.
Analysis products are also code-agnostic, allowing use without being tied to a specific code. Load combinations are customizable. Design products are typically flexible with regard to ASD vs. LRFD type checks.