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R-12, commonly known as Freon, was banned in the U.S. by international treaty in 1996 for its link to stratospheric ozone depletion.
Laverna Schroeder
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What year did the law make it mandatory to stop using R-12 freon?
R-12, commonly known as Freon, was banned in the U.S. by international treaty in 1996 for its link to stratospheric ozone depletion.
Are pap smears mandatory?
No, Pap smears are not mandatory. However they are strongly recommended every year because a doctor is able to make sure your healthy.
What year did Ford stop using points?
1932
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1912
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a 7 year old shouldn't be using a pacifier kids should not be using a pacifier more than the age 4 and take all there pacifers away and they will not be able to use one
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The NFL (National Football Leage) did not make the plastic helmets mandatory until the year 1943 because of concussions from the rubber helmets that were used before.
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Circuses never stopped using animals.
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1972
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The year 2000.
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The last year for silver dimes and quarters was 1964.
When did Chevy Camaro stop using carberaters?
1987 was the last year
What year did Pennsylvania stop using 2 license plates?
1953
