February 25, 1973 – After a 17-day spring training ban, owners and players agree on a three-year contract that sets out a salary arbitration procedure and the inclusion of the terms of the players` retirement plan. Following the 1972 Supreme Court decision, which detained MLB`s exception to cartels and abuse of dominance, the players chose to negotiate an agreement that did not address the issue of the free agency. No games are cancelled. On February 6, 2009, President Barack Obama signed Executive Order 13502, which asks federal authorities to consider using LTOs for federal construction projects that cost $25 million or more.  The purpose of this act was to repeal Bush`s executive orders in 13202 and 13208, over the previous eight years, which had banned mandatory PLAs for federal and federal projects.  The Obama Order states that federal authorities may require a PLA if such an agreement meets the federal government`s objectives in terms of profitability and efficiency. Under the terms of the contract, contractors cannot compete for contracts subject to PLA, but they must accept the different conditions contained in each ALP to win a federal contract and build a project.  A significant change from the 2001 order is that the Obama order, by removing bush sponsors from federal funds, such as public, local and private owners, allows for the use of public construction projects of all sizes. The order does not encourage or instruct federal aid recipients to use a government-mandated PLA.  August 7, 1985 – After a two-day strike, players and owners obtain an employment contract that amends the provisions relating to wage arbitration and the rules for compensation for free agents. Cancelled games are rescheduled in doubleheader or on open dates. On February 17, 2001, President George W.
Bush signed Executive Order 13202, “Preservation of Open Competition and Government Neutrality Government Contractors` Labor Relations on Federal and Federally Funded Construction Projects,” which prohibits the use of PLA for construction projects with federal funds.  In that decision, it was said that federally funded construction projects could not impose project work contracts.  In practical terms, the decision specifies that neither the federal government nor a federal aid agency can compel or prohibit construction contractors from signing union contracts as a precondition for carrying out work on federally funded construction projects.  The contract allowed all previously agreed-upon LASs to proceed and did not result in projects that did not receive federal funding.  Bush`s ordinance overturned the previous executive order regarding the PLA, the Clinton Ordinance of 12836, which annulled The Executive Order of President George H.W. Bush in 1992.  In April 2001, President George W. Bush issued an amendment to exclude certain drafts from the order if, at the time of the contract, a contract had already been awarded under an existing PLA.  Studies have shown that PLA project owners and local communities have advantages and penalize contractors and non-union workers. A 2009 study by Fred B. Kotler, J.D., associate director of Cornell University School of Industrial and Labor Relations, found that there was no evidence that PMAs discriminate pending employers and workers, limit the number of bidders and increase construction costs.
 In a 2009 report by Dale Belman of Michigan State University; Matthew M. Bodah of the University of Rhode Island and Peter Philips of the University of Utah said that instead of increasing costs, the agreements would bring benefits to the community.