Traduction et analyse de mots par intelligence artificielle ChatGPT
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Qu'est-ce (qui) est U S Coast Guard environmental protection - définition
![Coast Guard Academy]] in [[New London, Connecticut]].](https://commons.wikimedia.org/wiki/Special:FilePath/US Coast Guard Commandant Adm. Robert J. Papp DVIDS1107518.jpg?width=200 "Coast Guard Academy]] in [[New London, Connecticut]].")
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![Testing automobile emissions at an EPA laboratory in [[Ann Arbor, Michigan]]](https://commons.wikimedia.org/wiki/Special:FilePath/AN EPA FACILITY AT ANN ARBOR MEASURES ENGINE EXHAUST FROM A NEW AUTOMOBILE. (FROM THE SITES EXHIBITION. FOR OTHER... - NARA - 553895.jpg?width=200 "Testing automobile emissions at an EPA laboratory in [[Ann Arbor, Michigan]]")
![Stacks emitting smoke from burning discarded automobile batteries, photo taken in Houston in 1972 by [[Marc St. Gil]], official photographer of recently founded EPA](https://commons.wikimedia.org/wiki/Special:FilePath/BURNING DISCARDED AUTOMOBILE BATTERIES. (FROM THE SITES EXHIBITION. FOR OTHER IMAGES IN THIS ASSIGNMENT, SEE FICHE... - NARA - 553841.jpg?width=200 "Stacks emitting smoke from burning discarded automobile batteries, photo taken in Houston in 1972 by [[Marc St. Gil]], official photographer of recently founded EPA")
![Headquarters of the EPA at the [[William Jefferson Clinton Federal Building]]](https://commons.wikimedia.org/wiki/Special:FilePath/EPA HQ - WJ Clinton Building - Main entrance - 2018a.jpg?width=200 "Headquarters of the EPA at the [[William Jefferson Clinton Federal Building]]")
![EPA scientists conducting a stream survey on the [[Merrimack River]] in Massachusetts](https://commons.wikimedia.org/wiki/Special:FilePath/NEregionalLab 069 (14411979858).jpg?width=200 "EPA scientists conducting a stream survey on the [[Merrimack River]] in Massachusetts")
![OSV ''Bold'']] docked at [[Port Canaveral, Florida]]](https://commons.wikimedia.org/wiki/Special:FilePath/OSV Bold.jpg?width=200 "OSV ''Bold'']] docked at [[Port Canaveral, Florida]]")
Wikipédia
The United States Coast Guard maintains radio stations for communication between Coast Guard units, Coast Guard units and other government entities, and Coast Guard units and the general public. Most communications take place on the VHF marine bands. For long-range communications with aircraft, Coast Guard stations use shortwave single-sideband communications. Weather and safety of navigation forecasts involve facsimile as well as other modes over shortwave and mediumwave transmissions.
According to the NTIA, the Coast Guard is the seventh-biggest user of radio spectrum in the United States. The U.S. Coast Guard maintains a network of VHF radio stations at its shore stations and on cutters and boats, as well as stations of the U.S. Coast Guard Auxiliary. In addition, the Coast Guard maintains a chain of high frequency (HF) and medium frequency (MF) radio stations that provide communications in the Atlantic and Pacific oceans, the Gulf of Mexico, and the Caribbean Sea. Coast Guard VHF Radio stations are currently being upgraded through the Rescue 21 program to meet the US obligations under the Global Maritime Distress Safety System.
