Index Bachelor’s degree: 3000-3099 3100-3199 3200-3229 3230-3299 3300-3999 4000-4099 4100-4199 4200-5099 Master’s degree: 6000-6399 6400-6449 6450-6499 6500-6799 6800-6999 Doctoral degree: 8000-8999