What is the required minimum depth from the natural surface of the ground to the top of an outer case containing a casket?

The correct answer highlights that the minimum depth from the natural surface of the ground to the top of an outer case containing a casket is 1.5 feet. This standard is established in order to ensure adequate burial depth that meets both safety and health requirements.

This depth allows for proper decomposition conditions while minimizing the risks of disturbances from animals or erosion. The 1.5-foot minimum can also help in preventing issues related to surface settling and ensuring that the gravesite remains undisturbed. By having this specific requirement, it aligns with regulations meant to protect the dignity of the deceased and maintain the sanctity of burial sites.

The other options suggest depths that either exceed the requirement or do not meet the necessary standards for a proper burial, thereby not adhering to the guidelines set forth in Pennsylvania funeral regulations. In summary, the focus on 1.5 feet as the minimum depth reflects an established standard in the industry to balance practical needs with respect for the deceased.