Mass. Gen. Laws ch. 160, § 182: Experience of engineer and conductor; exceptions

Section 182. The three preceding sections shall not apply to the operating of locomotive engines by engine hostlers in or around engine houses, or to any railroad other than a standard gauge railroad. In the event of the disability of an engineer or conductor on the road, railroad companies may employ persons without the qualifications prescribed by sections one hundred and seventy-nine and one hundred and eighty, but only for the purpose of reaching a terminal station.