The New Hampshire Department of Environmental Services (NHDES) Air Resources Division recently released a list of rules to assess whether emergency generators are in compliance with state requirements. All fuel-burning emergency generators that exceed a certain power threshold are subject to general state permitting (GSP). To ease the regulatory burden on businesses, NHDES eliminated an annual emission-based fee and established an online GSP permitting application program.
Although single emergency generators have little effect on air quality, the combined operation of the generators greatly impacts pollution and public health. The GSP system ensures that emergency generators are only used for emergencies and that emissions are minimized.
For the full list of rules and more information, see here.