By law, what agency is responsible for the management of the archaeological and historical sites in the united states

National Park Service is responsible for the management of archaeological and historical sites in the united states.

Explanation:

The National park service is the federal agency that is responsible for our national parks and various other important structures such as Historical properties, archaeological, monuments, and other conservative properties. The role of National park service is very crucial it must protect the ecological and historical integrity of the country. It is the duty of the National park to clean, repair, and put back the artifacts from where they were believed to have once been.