The 1999–2000 NCAA Division III men's ice hockey season began on October 22, 1999 and concluded on March 18 of the following year.
Each team in the ECAC East and NESCAC played one another in one game that counted in their respective conference standings.
With the NESCAC now sponsoring ice hockey as a varsity sport, the conference dropped its policy that allowed member schools to play in only one postseason tournament.
Because there was no longer a national tournament, schools that operated varsity ice hockey programs had several options available to them.
While they met conference and NCAA guidelines by not offering scholarships to any players,[1] the program was still ineligible for postseason play.