MADCAD.com This link opens in a new windowMADCAD.com provides access to: 2021 International Building Code, 2021 International Existing Building Code, 2020 New York State Building Code, 2021 International Fire Code, 2021 International Mechanical Code, and 2021 International Plumbing Code. Access is for one simultaneous user. Once at the MADCAD site, click on "Proceed to eLibrary" on the upper left to access the codes. One concurrent user.