Source: https://www.mass.gov/service-details/open-burning-safety

"Outdoor cooking is allowed year-round in all communities and is not subject to open burning limits."

and

"Fire pits have become popular in recent years. But unless they are being used for cooking, they are subject to the MassDEP open burning regulation. If you do use a fire pit for cooking, the fire must be:
Kept to a reasonable size
Located away from combustible materials
Contained in a non-flammable enclosure, and
Tended by someone who is 18 years of age or older. "

and

"Some cities and towns regulate, limit or prohibit the use of chimineas, fire pits and outdoor fireplaces. To find out if your community has specific requirements, contact your local fire department."