In 2025, Carnegie changed the methodology for determining R1 classification. To attain the status, research and development expenditures must total at least $50 million and award 70 doctoral research degrees annually. The threshold to attain R2 classification remained the same — at least $5 million in total research expenditures and awarding at least 20 doctoral research degrees.
R1 research institutions are now called "R1: Very High Research Spending and Doctorate Production," while R2 universities are called "R2: High Research Spending and Doctorate Production." Additionally, Carnegie has a third category for higher education institutions spending at least $2.5 million on research and development called "Research Colleges and Universities."