OBS_VALUE: <ul><li><a href=https://elaws.e-gov.go.jp/search/elawsSearch/elaws_search/lsg0500/detail?lawId=342AC0000000110 target=_blank>Act on Prevention of Damage caused by Aircraft Noise in Areas around Public Airports( 公共用飛行場周辺における航空機騒音による障害の防止等に関する法律, Law No.110 of 1967, last amended on Jun 13, 2014(Law No.69 of 2014), article 3)</a></li><li><a href=https://www.pref.chiba.lg.jp/kuushin/narita/documents/mineika_1_1.pdf target=_blank>Memorandum of Understanding on the Privatisation of New Tokyo International Airport Authority(新東京国際空港公団民営化に関する覚書, February 28, 2003)</a></li><li><a href=http://www.mlit.go.jp/common/000993106.pdf target=_blank>Memo on Flexible Operation on the curfew of the Narita International Airport(成田空港の離着陸制限（カーフュー）の弾力的運用に関する確認書, March 29, 2013)</a></li></ul>