 <translate> The NHL Collective Bargaining Agreement (CBA) is the basic contract between the National Hockey League (NHL) team owners and the NHL Players' Association (NHLPA), designed to be arrived at through the typical labour-management negotiations of collective bargaining. The most recent agreement, tentatively reached on January 6, 2013 after a labour dispute which cancelled 510 regular season games of the 2012 -- 13 season, was ratified by the league's Board of Governors on January 9, 2013, as well as by the NHLPA membership three days later on January 12, 2013. The current CBA is a 10-year deal, the longest in NHL history, expiring after the 2021 -- 22 season.

Answer this question based on the passage: when does the nhl collective bargaining agreement expires? OK. Let's think. My stream of consciousness: <yor> Àdéhùn Àjọṣe Àjọṣe NHL (CBA) ni ìwé àdéhùn pàtàkì tí ó wà láàrin àwọn onílé ẹgbẹ́ National Hockey League (NHL) àti Ẹgbẹ́ Àwọn Òṣèré NHL (NHLPA), tí wọ́n ṣe láti dédé nípasẹ̀ àwọn ìjùmọ̀sọ̀rọ̀ tí ó wọ́pọ̀ láàárín àwọn òṣìṣẹ́ àti àwọn alábòójútó nínú àdéhùn àjọṣe. Àdéhùn tí wọ́n ṣe lẹ́nu àìpẹ́ yìí, tí wọ́n ṣe ní January 6, 2013 lẹ́yìn tí awuyewuye iṣẹ́ tí wọ́n fagilé 510 ìdíje ìdíje tí wọ́n ṣe ní ọdún 2012 - 13, ni ìgbìmọ̀ olùdarí ìdíje náà fọwọ́ sí ní January 9, 2013, àti àwọn ọmọ ẹgbẹ́ NHLPA ní ọjọ́ mẹ́ta lẹ́yìn náà ní January 12, 2013. Àdéhùn CBA tó wà lọ́wọ́lọ́wọ́ yìí jẹ́ ti ọdún mẹ́wàá, èyí tó gùn jù lọ nínú ìtàn NHL, ó sì máa dópin lẹ́yìn ọdún 2021 - 22.  Dáhùn ìbéèrè yìí ní ìbámu pẹ̀lú àyọkà náà: ìgbà wo ni àdéhùn ìfọwọ́sowọ́pò NHL máa ń dópin? Ó dáa. Ẹ jẹ́ ká ronú. Ìmọ̀lára mi: 