Schools will be required to provide military opt-out forms to 9th- and 10th-grade students and to develop a plan to monitor on-campus recruiting by the armed forces, according to new guidelines announced by the city’s Department of Education on Monday night.

The requirements, set to go into effect this fall, follow months of criticism from civil liberties groups, which had pushed to curtail recruiters’ access after school officials decided last year to give military recruiters access to a central database of students’ names, addresses and telephone numbers. Previously, recruiters had been forced to go from school to school to collect students’ data.

The new guidelines extend the requirement to include opt-out forms in orientation packets to younger high school students; in the past, only 11th- and 12th-grade students received the forms. The Department of Education will also add information on opting out to its instructions on their rights and to materials for students who take an armed services aptitude test.

Donna Lieberman, executive director of the New York Civil Liberties Union, praised the changes, which include a requirement that principals appoint a staff member to oversee a military recruiting plan for each school. Ms. Lieberman said that too often there was not enough oversight of the recruiters and that in some cases they were too aggressive.