What is a list of the required and non-required merit badges?

To earn Eagle scouts must earn 21 merit badges including 12 out of the list of 15 below:

1) First Aid

2) Citizenship in the Community

3) Citizenship in the Nation

4) Citizenship in the World

5) Communications

6) Personal Fitness

7) Emergency Preparedness OR Lifesaving

8) Environmental Science

9) Personal Management

10) Swimming OR Hiking OR Cycling

11) Camping, and

12) Family Life

The current list of all merit badges is:

American Business

American Cultures

American Heritage

American Labor

Animal Science

Archaeology

Archery

Architecture

Art

Astronomy

Athletics

Automotive Maintenance

Aviation

Backpacking

Basketry

Bird Study

Bugling

Camping

Canoeing

Chemistry

Chess

Cinematography

Citizenship in the Community

Citizenship in the Nation

Citizenship in the World

Climbing

Coin Collecting

Collections

Communications

Composite Materials

Computers

Cooking

Crime Prevention

Cycling

Dentistry

Disabilities Awareness

Dog Care

Drafting

Electricity

Electronics

Emergency Preparedness

Energy

Engineering

Entrepreneurship

Environmental Science

Family Life

Farm Mechanics

Fingerprinting

Fire Safety

First Aid

Fish and Wildlife Management

Fishing

Fly Fishing

Forestry

Gardening

Genealogy

Geocaching

Geology

Golf

Graphic Arts

Hiking

Home Repairs

Horsemanship

Indian Lore

Insect Study

Inventing

Journalism

Landscape Architecture

Law

Leatherwork

Lifesaving

Mammal Study

Medicine

Metalwork

Model Design and Building

Motorboating

Music

Nature

Nuclear Science

Oceanography

Orienteering

Painting

Personal Fitness

Personal Management

Pets

Photography

Pioneering

Plant Science

Plumbing

Pottery

Public Health

Public Speaking

Pulp and Paper

Radio

Railroading

Reading

Reptile and Amphibian Study

Rifle Shooting

Robotics

Rowing

Safety

Salesmanship

Scouting Heritage

Scholarship

Scuba Diving

Sculpture

Shotgun Shooting

Skating

Small-Boat Sailing

Snow Sports

Soil and Water Conservation

Space Exploration

Sports

Stamp Collecting

Surveying

Swimming

Textile

Theater

Traffic Safety

Truck Transportation

Veterinary Medicine

Water Sports

Weather

Welding

Whitewater

Wilderness Survival

Wood Carving

Woodwork