Sorry, it's a 3-2 plan, not a 2-3. Here's more information....
From the Colgate site: "The department offers two ways to prepare for engineering: concentrate in physics at Colgate and after graduation go to graduate school in engineering, or use one of the combined plans available in the department. To allow a student to combine education in the liberal arts with engineering training, Colgate has cooperative agreements with Columbia University, Rensselaer Polytechnic Institute, and Washington University. A student may spend three years at Colgate and two at the engineering school (the 3-2 plan) to earn bachelor’s degrees from both institutions. The student may be eligible to continue study for a master of science (MS) degree, which can sometimes be completed in as little as one additional year after earning the bachelor’s degree in engineering. Eligibility for the MS program is determined by the engineering school."
Found here:
Colgate: Physics and Astronomy; Pre-Engineering