The US Fish and Wildlife Service (FWS) announced Tuesday a proposal to expand hunting and fishing programs in the National Wildlife Refuge System.

FWS is proposing new hunting programs on six national wildlife refuge sites and expanding the existing hunting and fishing programs on an additional 20 sites.

National wildlife refuges across the country provide habitat for hundreds of different species of birds, mammals, reptiles and amphibians, as well as more than 1,000 species of fish. Nearly 400 threatened or endangered plants or animals are protected on the refuges, according to the FWS.

The proposal would allow hunting for the first time on six refuge sites in New York, Oregon, Pennsylvania and Wyoming, as well as hunting and fishing programs on refuge sites in 13 other states.

Secretary of the Interior Sally Jewell made the announcement ahead of Sept. 28, which is National Hunting and Fishing Day.

"Sportsmen and women were a major driving force behind the creation and expansion of the National Wildlife Refuge System more than a century ago and continue to be some of its strongest supporters, especially through their volunteer work and financial contributions," Jewell said in a statement. "Keeping our hunting and angling heritage strong by providing more opportunities on our refuges will not only help raise up a new generation of conservationists, but also support local businesses and create jobs in local communities."

According to FWS, the National Wildlife Refuge System includes more than 560 refuges, 38 wetland management districts and other protected areas encompassing 150 million acres of land and water from the Caribbean to the remote Pacific.

At least one national wildlife refuge is in every state and US territory and many are within one hour's drive of most major metropolitan areas.

Currently, hunting is permitted within specific areas of 329 wildlife refuges and fishing is allowed on 271.

Below is a list of the proposed additions to hunting and fishing in the National Wildlife Refuge System:

The Service proposes opening the following refuges to hunting for the first time:

New York

Oregon

Pennsylvania

Wyoming

Meanwhile, under the proposal, the Service would expand hunting and sport fishing on the following refuges:

California

Florida

Idaho

Illinois

Indiana

Iowa

Maine

Missouri

New Mexico

Oregon

Texas

Vermont

Washington