Incentives were also provided in the past by the Greek government to promote the renewal of the fleet of public transport buses, aiming at the replacement and modernization of old vehicles. The Special Land Planning Framework for Tourism (Government Gazette 1138/B/2009), currently in force, provides for restrictions concerning the protection of the environment. For instance, article 6 paragraph E1, referring to tourist sports and especially to golf, imposes various measures regarding the protection of the environment and particularly water resources from the danger of overuse and pollution. Ski tourism too raises the need for measures to protect the environment, particularly on issues concerning improving accessibility and limiting the repercussions on the special characteristics of the areas concerned. A new Special Land Planning Framework expected at the end of 2010 will include more restrictions. According to its recently published guidelines, tourism enterprises can make applications under this programme if they want to install eco-friendly equipment, use alternative sources of energy for their everyday operations, or pursue other environmental protection goals.