The New Hampshire Air Toxics Control Program applies to any business that uses chemicals in its manufacturing or business process that has a Material Safety Data Sheet (MSDS). If the section of the MSDS titled "Hazardous Ingredients" contains any chemicals listed in the table in the NH Air Toxics Rule, you may be subject to the rule, and you must determine your compliance status. The following activities are exempt from the rule:
- Mobile sources.
- Normal agricultural operations.
- The application of a regulated pesticide.
- The combustion of one or more of the following fuels:
a. coal
b. natural gas
c. wood
d. virgin petroleum products - A woodworking device employing a pneumatic transfer system for collecting sander dust, which uses a baghouse operated and maintained in accordance with the manufacturer’s specifications.
- Sources whose emissions are demonstrated and documented to be less than the deminimus levels or less than 50 percent of the AAL.
- Regulated gasoline dispensing or storage facilities or cargo trucks.
- Regulated open burning.
- Office activities and equipment, such as copying, duplication, typewriters, printers, and blueprinting.
- Interior maintenance and janitorial activities, such as the use of cleaning products and air fresheners.
- Bathroom and locker room ventilation.
- Maintenance activities limited to welding, gluing, painting of process equipment and soldering.
- First aid or emergency medical care.
- Exterior grounds maintenance activities including lawn care and pest control.
- Food preparation activities (excluding activities connected to preparation of packaged food for off-site consumption).
- Venting of particulate emissions from processes equipped with removal equipment and which are vented inside the building.
- Laboratory ventilation hoods for educational, research and development activities.
- The use of consumer products in a manner consistent with how the general public would use the products.
- The use of fire control equipment.
- Waste site characterization and feasibility tests.