Safety Measures Implemented by Schools
| Safety Measure | Percentage of Schools to Institute this Measure |
| Visitors required to sign in before entering the building | 96% |
| Controlling access to the school grounds | 24% (49% of large schools) |
| Controlling access to the school building | 53% |
| Students prohibited from leaving campus during lunch | 80% |
| Daily use of metal detectors | 1% |
| Random metal-detector checks | 15% (Large schools) 4% (Medium-sized schools) Less than 1% (Small Schools) |
| Police or other law-enforcement personnel stationed at school | 12% (Available as needed) 3% (1 to 9 hours per week) 1 % (10 to 29 hours per weeks) 6% (30 hours or more) 22% (Total) |