The Middlesex Construction Department is developing a listing of relating to construction, permits and regulations. Massachusetts has established comprehensive safety regulations and worker rights to protect those in the construction industry.Conditions in the construction industry: • New construction techniques, materials, and equipment have come into common use. Construction safety and Health Course. Proof of completion required for employees on public building projects. The National Safety Council is America's leading nonprofit safety advocate. We focus on eliminating the leading causes of preventable injuries and deaths. The Middlesex County Health Department provides health inspection services in the following communities. Each municipality has an inspector assigned to it.