The links below take you to either the sites of the key VOC regulators or to a page on this site which makes it easier to find the various VOC regulations.
US Environmental Protection Agency (website)  (link)
Environment Canada (website)  (link)
California Air Resources Board (CARB) (website)  (link)
South Coast Air Quality Management District (SCAQMD) (website)  (link)
Ozone Transport Commission (OTC) (website)  (link)
Massachusetts Energy and Environmental Affairs (website)  (link)
New York Dept of Environmental Conservation (website)  (link)
New Jersey Dept. of Environmental Protection Bureau of Air Quality Planning (website)  (link)
Pennsylvania Department of Environmental Protection (website)  (link)
Lake Michigan Air Directors Consortium (LADCO) (website)  (link)
Michigan Dept. of Environmental Quality (website)  (link)
Ohio Environmental Protection Agency (website)  (link)
Oregon Department of Environmental Quality (website)  (link)
Illinois Pollution Control Board (website)  (link)
Indiana Department of Environmental Protection (website)  (link)
Florida Division of Air Resource Management (website)  (link)
Texas Commission on Environmental Quality (website)  (link)
Virginia Department of Environmental Quality (website)  (link)
Washington Department of Ecology (website)  (link)
  THIS GUIDE IS NOT MEANT TO BE EXHAUSTIVE. There are regulators in every state, and many local regulators.  This guide does not cover all of them. Many regulations simply refer to the California standards or adopt the California regulations wholesale. Application by Jurisdiction.  Note that if your company sells or manufactures products in a state, you are subject to the VOC regulations of that state, which may not be included in this guide. You may need to access these regulators directly if they are not referenced herein.  As a general rule, if you follow the California guidelines, your products will satisfy the toughest restrictions in the US.