For the purposes of this Protocol:
"Convention" means the Vienna Convention for the Protection of the Ozone Layer, adopted on 22 March 1985.
"Parties" means, unless the text otherwise indicates, Parties to this Protocol.
Each Party shall ensure that for the twelve-month period commencing on the first day of the seventh month following the date of entry into force of this Protocol, and in each twelve-month period thereafter, its calculated level of consumption o...