Montreal Protocol on Substances that Deplete the Ozone Layer

Published by

The Vienna Convention on the Protection of the Ozone Layer

Signed in 1985, this treaty is the precursor to the Montreal Protocol.

The Montreal Protocol on Substances that Deplete the Ozone Layer

Adopted on September 16, 1987 and amended four times:

The Ozone Secretariat is located at the United Nations Environment Program, http://ozone.unep.org/

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