Mass. Gen. Laws ch. 111, § 142F

Whoever, except in an emergency, allows excess fuel to be discharged into the atmosphere from an aircraft shall be punished by a fine of not less than two hundred and fifty dollars nor more than seven hundred and fifty dollars. As used in this section ''excess fuel'' shall mean that quantity of unused fuel which collects in ''drain cans'' from the engines of aircraft following the starting up or the shutting off of such engines, and ''drain can'' shall mean that receptacle located below or adjacent to an aircraft engine in which unused fuel collects or is collected when the engine is not in operation or just after the engine has been put into operation.