A good rule of thumb is this: a business that sells goods, needs a Business License; a business that offers professional services (regulated by the state) needs a Business Certificate.
Let's be more specific for a moment. Obtaining a license to operate a business depends on the
type of business as well as the location of the business. To learn if
your business requires a license, visit the local town hall to learn
what the requirements are. The State also requires that certain
occupations and businesses be licensed.
For information and an
alphabetical listing of licensed occupations, visit
this site. For food services businesses,
contact the Bureau of Food Protection at 603-271-4589.