Whoever is the owner or keeper of a dog shall restrain said dog by a chain or leash when in an officially designated public highway rest area. Whoever violates the provisions of this section shall be punished by a fine of not more than $100.
Mass. Gen. Laws ch. 140, § 174B
Restraint of dogs in public highway rest areas; penalty
Official source: Massachusetts Legislature. Reproduced from public-domain Massachusetts statutes; confirm against the official source for the current text. Not legal advice.