The so-called Maryland Dream Act would allow students without legal resident status to pay in-state or in-county tuition as long as they graduate from a Maryland high school they've attended for at least two years.
The measure is sponsored by Sen. Victor Ramirez (D), who hopes to have Maryland join 11 other states which currently allow undocumented students to pay the reduced cost.
Opponents argue the bill gives preferential treatment to undocumented students at a time when taxpayers in Maryland can least afford it.
Wednesday's public hearing before the Senate Education Affairs Committee allows both sides to make their case for the issue. Testimony is expected to last into the evening.