Due to the large number of away games and associated travel days in American sports, per diem rates are often major components in collective bargaining agreements between leagues and their players' unions. As of 2016, the NBA has the highest per-diem for players at $115 per day, followed by the NHL whose per-diem began at a base of $100/day in 2012–13 and is adjusted each year based on changes in the US Consumer Price Index. Minor pro and collegiate athletes also receive meal money for overnight trips, usually paid as a rate set by the league or university they are affiliated with. As athlete salaries have risen, per diems have occasionally become a contentious issue when negotiating CBAs: for instance, in 2016 Major League Baseball slashed allowances from $100/day to $35/day, citing high salaries and teams now providing pre- and post-game food to players on the road as their rationale.