ATLANTIC CITY, NJ - Standard 90 was originally a single document. Then it was split into 90.1 and 90.2 in the 1980’s. A forum asked “Should Standards 90.1 and 90.2 Be Combined Into a Single Standard?”
The discussion centered on whether it would be advantageous to bring them back together. The federal government has required states to adopt Standard 90.1 into their codes. However, the Model Energy Code is being used instead of 90.2.