“It’s kind of eye-opening,” said Tyson, who said the alerts make him understand the desire for some on campus to protect themselves with a firearm.

The timing of Deal’s approval came at the busiest time of the spring semester — during final exams and graduation ceremonies — and the governor will be on the Valdosta State University campus Saturday to give the commencement address.

Officials there have already begun to worry about the law’s effect, although the University System said it will finalize new policy guidelines for its schools before its July 1 effective date.

Still, not everyone is on board.

“This is a mistake,” said Brian Childress, the city of Valdosta’s police chief, who is worried the new law will increase chances that students may harm themselves or someone else. “It defies all of the logic and the data.”

Once it takes effect, House Bill 280 will allow anyone with a concealed weapons permit to carry firearms on public college and university campuses, with a number of exceptions that include dormitories, fraternity and sorority houses, and buildings used for athletic events. On-campus child care centers will also be excluded, as will areas where high school students attend class, offices or rooms used for disciplinary hearings, and faculty academic offices.

The bill's sponsor, state Rep. Mandi Ballinger, R-Canton, has said it will restore a Second Amendment right to bear arms, and she noted that Georgia law requires anyone seeking a state permit to carry a concealed gun to be at least 21 years old. Applicants also must be fingerprinted and pass a background check.

Still, with little in the bill indicating how schools should implement the new rules, a number of faculty and students said they were not sure what to expect.

Deal's signature made Georgia the 34th state to allow guns on it public campuses. Nine states allow concealed weapons on public postsecondary campuses, according to the National Conference of State Legislatures. Twenty-four other states allow concealed carry weapons on campus but give each college or university the option to permit anyone to have a firearm.

Every state does it a little differently. Texas, for example, included provisions allowing gun safes and lockers in university housing in its measure last year. Georgia’s measure does not, and supporters including Ballinger have said it was conceived with the idea that most students over 21 are not going to be living on campus.

Some students are already pushing for officials to post signs on campus explicitly marking areas where people can carry guns and where they are off-limits.

University of North Georgia assistant English professor Matt Boedy recently sent administrators a list of questions he and other faculty members had about how the system would shape new campus gun rules. Among their questions: How do you know whether a gun holder has a permit; will the campus have to pay more money for insurance; and what would be the procedures for preventing students from carrying a firearm into their offices?

Boedy said he’s worried the law will result in some of his colleagues spending less time on campus out of fear that a shooting might occur.

“It would radically change what we do,” Boedy said.

How will this work?

Here’s a primer on Georgia House Bill 280, called the campus gun bill.

Q: Can you carry a firearm on any campus in Georgia?

A: No. The law applies only to public colleges and universities in the state, such as the University of Georgia, Georgia Tech, and Georgia State and Kennesaw State universities. It does not apply to private institutions such as Emory University or Spelman College.

Q: Who gets to carry a weapon on campus?

A: Anyone with a Georgia weapons license. In Georgia, you must be 21 or older, be fingerprinted and pass a background check to obtain a license.

Q: Are there places on public campuses where firearms are prohibited?

A: Yes. When the law takes effect, guns will still not be allowed in athletic venues, student housing, fraternity and sorority houses, faculty academic offices, offices where disciplinary proceedings are held, spaces where classes are held for high school students including dual-enrollment programs, as well as pre-school and child care facilities.

Q: Does the firearm have to be exposed for anyone to see?

A: The weapon is supposed to be concealed, carried in a fashion that does not attract the attention of others.

Q: Who’s responsible for enforcing the law?

A: In most cases, it will be campus police.

Q: What role will faculty play in administering the law?

A: It's unclear. University System of Georgia officials have asked its institutions not to make any rule changes until it offers them guidance.

Q: When does the law take effect?

A: July 1.