What establishes the minimum standards essential for safe and sanitary habitation in existing buildings?

The housing code is the correct choice as it specifically addresses the minimum standards for safe and sanitary habitation within existing buildings. A housing code typically outlines necessary provisions related to sanitation, ventilation, structural integrity, and other factors that contribute to the overall livability and safety of a building. It serves as a guideline for property owners and a basis for enforcement by code enforcement agencies to ensure that homes meet specific health and safety criteria.

In contrast, a government code generally covers the laws and regulations governing the operations of government functions and is not primarily focused on building standards. The building code pertains to the design and construction of new buildings, detailing requirements for structural integrity, fire safety, and energy efficiency, rather than addressing existing structures directly. The residential code includes regulations that apply to residential buildings but does so primarily for new construction or major renovations rather than setting standards specifically for existing buildings.