Massachusetts Exhibit 4 is a form used by landlords to provide tenants with a copy of the Massachusetts Sanitary Code. It includes information on the standards for health and safety in rental properties, including minimum requirements for water and sewer connections, garbage disposal, ventilation, heating, and pest control. There are two types of Massachusetts Exhibit 4: General Sanitary Code Exhibit 4 and Lead Paint Exhibit 4. The General Sanitary Code Exhibit 4 outlines the Massachusetts Sanitary Code, including regulations for smoke detectors, carbon monoxide detectors, and fire safety. The Lead Paint Exhibit 4 focuses on the prevention of lead poisoning by outlining regulations for lead-based paint and dust removal.