Employers and unions must be in good faith in the negotiation of collective agreements, which also means that they cannot be wrong or wrong. It is important to understand the difference between a common class agreement and an employment contract. While there is a common law contract when you mandate a worker, whether it is an oral or written contract, the term employment contract, as used in labour law, refers to a formal document containing certain clauses and formally submitted to a public authority. There are three types of employment contracts in the federal system: according to OAS statistics, as of 31 December 2004, 1,410,900 people were covered by EU-certified agreements, 168,500 by non-union agreements and 421,800 or more than 21% of AEAs. As of December 31, 2005, there were 1,618,200 under the Union Certified Agreements, 185,300 under non-union agreements and 538,200 Australian enterprise agreements.  Figures published in March 2005 by the Australian Bureau of Statistics show that hourly wages for workers in AWAs were 2% lower than workers` hourly wages in registered collective agreements, which were mainly negotiated by trade unions.  For women, AEAs paid 11% less per hour than collective agreements.  Fair labour laws, which came into force in 2008, created individual transitional employment contracts or ITEAs (special agreements that could only be concluded until the end of 2009) and amended collective agreements in July 2009 under enterprise agreements. In April 2007, the Sydney Morning Herald reported that it had received unpublished government tables showing that 27.8% of the agreements had eliminated the conditions that were to be protected by law.   The tables were based on a sample of AWA agreements.
 Enterprise agreements must be the “best overall test” (BOOT) relative to the respective premium. In reality, this means that the worker must turn better financially if he is at the end of the contract than he would have been under the premium. There are three main types of employment contracts: indeterminate contracts, fixed-term contracts and casual employment contracts. Federal enterprise agreement laws were amended on January 1, 2010. The most common type of labour agreement in agriculture is the single enterprise agreement, which is an agreement between a single employer and its workers or a group of workers. Australian employment contract laws (AWAs) have changed.