Australia, and it oversees system security of the NEM electricity grid and the Victorian gas transmission network. In addition, it is responsible for national transmission planning and the establishment of a short term trading market for gas. AEMO was established by the Council of Australian Governments (COAG) and developed under the guidance of the Ministerial Council on Energy (MCE). It is run by a skills-based board of nine non-executive directors and the chief executive officer. National Electricity Law Due to the process of cooperative federalism under which the NEM was established, the National Electricity Law (NEL) is contained in a Schedule to the National Electricity (South Australia) Act 1996 (SA). The NEL is applied as law in each participating jurisdiction of the NEM by application statutes, for example the National Electricity (Victoria) Act 2005. National Electricity Rules The National Electricity Rules (NER) govern the operation of the National Electricity Market. The Rules have the force of law, and are made under the National Electricity Law. Up-to-date versions of the Australian National Electricity Rules can generally be found on the AEMC's website. Terminology Formal terminology Much of the terminology used in the National Electricity Market is derived from the National Electricity Law (NEL) and National Electricity Rules (NER). Scheduled Generator A generating unit generally non-intermittent units above 30MW. They are required to submit price/quantity bids specifying their generation intentions, and must comply with dispatch instructions from AEMO. Semi-Scheduled Generator A generating unit which has a nameplate rating of 30 MW or greater (or is part of a group of generating units connected at a common connection point with a combined nameplate rating of 30 MW or greater), must be classified as a semi-scheduled generating unit where the output of the generating unit is intermittent unless AEMO approves its classification as a scheduled generating unit or a non-scheduled generating unit. Market Participant A person who is registered by AEMO as a Market Generator, Market Customer or Market Network Service Provider under Chapter 2 of the NER. Good faith bidding Scheduled Generators and Market Participants must make dispatch offers, dispatch bids and rebids in good faith (s.3.8.22A, NER). Informal terminology Gentailer The term 'gentailer' or gen-tailer is a portmanteau word combining the terms generator and retailer, i.e. gen-tailer. This is a reference to the vertical integration of companies operating in the NEM, where generators own a retail arm. Four companies in the Australian