The Department of Natural Resources leads Maryland in securing a sustainable future for our environment, society, and economy by preserving, protecting, restoring, and enhancing the State’s natural resources. The fishing section includes commercial and recreational fishing info, including Licensing, Regulations, Fishing Reports, and more. The boating section contains a wealth of information including Registration, Regulations, Education, Public Facilities, and much more. The Parks section has a lot of information about Maryland's parks.

The Potomac River Fisheries Commission coordinates regulations with the Maryland Department of Natural Resources (DNR), the Virginia Marine Resources Commission (VMRC) and the Department of Game and Inland Fisheries, (DGIF) and with the other Atlantic coastal states through the Atlantic States Marine Fisheries Commission (ASMFC). The states of Maryland and Virginia are both vitally interested in conserving and improving the valuable fishery resources of the tidewater portion of the Potomac River, maintaining law and order and peace and safety on the river, and recognizing that certain provisions of the Maryland-Virginia Compact of 1785 had become obsolete, agreed in 1958 that such conservation and improvement could be best achieved by a commission comprised of representatives of both Maryland and Virginia.