330 CMR, § 20.01
Handler is defined as the person under whose control and command a Guard Dog performs its required duty. It shall also include the person under whose control a free-working guard dog is transported to and from its site of duty.
Kenne l is hereafter defined as a multi-animal, indoor shelter containing a section or sections in which one or a group of animals is housed.
Single-animal house is defined as a structure designed to house one animal. A motor vehicle is not deemed usable as either a kennel or a single-animal house.
Trainer is defined as that person responsible for the training of Guard Dogs. The trainer shall be:
(a) the owner or operator of a guard dog business.
(b) the responsible employee of a Guard Dog Licensee or
(c) a person whose sole business is the supplying of trained guard dogs to others.
Work site is defined as that area or building in which a Guard Dog is maintained on patrol, with or without a Handler.
330 CMR, § 20.01