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Montreal Protocol is the protocol. It was signed in 1988.
It depends on what country you are in. The Cartagena Protocol is an international protocol.
The protocol to the international treaty on economic, social and cultural rights.
The Kyoto Protocol.
The Geneva Protocol was signed on June 17, 1925, prohibiting the use of chemical and biological weapons in international armed conflicts. The main elements of the protocol are now considered by many to be part of customary international law.
ICMP protocol.
Carbon dioxideCarbon monoxideMethaneOxides of nitrogen- Nitrogen dioxide, Nitrogen oxide, Nitrous oxideSulphur dioxideSuspended Particulate Matter
Montreal Protocol
Montreal Protocol.
The Montreal Protocol.
NTP (Network Time Protocol)
The Kyoto Protocol is an international agreement while the Copenhagen Accord is a political agreement.