Telephone numbers in Australia plan (including the "Trunk Access Code"), presented in domestic format. (Geographical region boundaries do not exactly follow State borders.) The current numbering plan would appear to be sufficient to cope with potential increase in demand for services for quite some time to come. The 06 and 09 area codes are completely unused. In addition, each current area code has large number "ranges" unallocated. When dialling from outside Australia, after dialling the appropriate International Access Code it is necessary to dial the Country Code for Australia (61) followed by the nine digit "National 'Significant' Number". (The + symbol is used to
International Code for Ships Operating in Polar Waters consideration of existing treaties that encompass safety ("International Convention for the Safety of Life at Sea" or "SOLAS") and environmental protections (the "International Convention for the Prevention of Pollution From Ships", 1973 as modified by the Protocol of 1978 or "MARPOL"). The International Maritime Organization (IMO) is currently developing the Polar Code, which would cover the full range of design, construction, equipment, operational, training, search and rescue and environmental protection matters relevant to ships operating in the inhospitable waters surrounding the two poles. The Code will not be in force for ships less than 500GT, fishing vessels or those entitled