Mars is approximately half the diameter of Earth, and its surface area is only slightly less than the total area of Earth's dry land. Mars is less dense than Earth, having about 15% of Earth's volume and 11% of Earth's mass, resulting in about 38% of Earth's surface gravity. The red-orange appearance of the Martian surface is caused by iron(III) oxide, or rust.
You asked for an explanation of recently issued federal regulations governing hospital emergency services and whether they would require any changes in state law.
Domestic violence law is governed primarily by criminal and family law statutes. In Maryland, the official source for the state statutes is the Annotated Code of Maryland.