From possibilities to subjects
Study fields & careers
Explore the subjects connected to different kinds of work. A field can lead to several careers, and a career can draw on several fields.
Operations Management and Supervision
CIP 2020 · 52.0205
Operations Research
CIP 2020 · 14.3701
Ophthalmic Laboratory Technology/Technician
CIP 2020 · 51.1006
Ophthalmic Technician/Technologist
CIP 2020 · 51.1803
Ophthalmology Residency Program
CIP 2020 · 61.1401
Ophthalmology Residency/Fellowship Programs, Other
CIP 2020 · 61.1499
Opticianry/Ophthalmic Dispensing Optician
CIP 2020 · 51.1801
Optics/Optical Sciences
CIP 2020 · 40.0807
Optometric Technician/Assistant
CIP 2020 · 51.1802
Optometry
CIP 2020 · 51.1701
Oral and Maxillofacial Pathology Residency Program
CIP 2020 · 60.0104
Oral and Maxillofacial Radiology Residency Program
CIP 2020 · 60.0109
Oral and Maxillofacial Surgery Residency Program
CIP 2020 · 60.0101
Oral Biology and Oral and Maxillofacial Pathology
CIP 2020 · 51.0503
Oral/Maxillofacial Surgery
CIP 2020 · 51.0507
Organic Chemistry
CIP 2020 · 40.0504
Organizational Behavior Studies
CIP 2020 · 52.1003
Organizational Communication, General
CIP 2020 · 09.0901
Organizational Leadership
CIP 2020 · 52.0213
Ornamental Horticulture
CIP 2020 · 01.0603
Orthodontics Residency Program
CIP 2020 · 60.0105
Orthodontics/Orthodontology
CIP 2020 · 51.0508
Orthopedic Nurse Practitioner Residency/Fellowship Program
CIP 2020 · 60.0731
Orthopedic Sports Medicine Fellowship Program
CIP 2020 · 61.1503
Orthopedic Surgery Nurse Practitioner Residency/Fellowship Program
CIP 2020 · 60.0732
Orthopedic Surgery of the Spine Fellowship Program
CIP 2020 · 61.1504
Orthopedic Surgery Physician Assistant Residency/Fellowship Program
CIP 2020 · 60.0917
Orthopedic Surgery Residency Program
CIP 2020 · 61.1501
Orthopedic Surgery Residency/Fellowship Programs, Other
CIP 2020 · 61.1599
Orthopedic Technology/Technician
CIP 2020 · 51.0923
This directory covers fields present in the published education crosswalk. It is not a complete CIP classification or a list of currently available college programs. A relationship is a research lead, not an admission, licensing or employment requirement.
Browse study areas reported by colleges →Education relationships: O*NET® Resource Center crosswalks, U.S. Department of Labor, Employment and Training Administration, based on NCES CIP data. CIP 2020 → O*NET-SOC 2019, source edition July 2024. Used under CC BY 4.0. StudyIndex groups the source relationships and adds exploration pages; no USDOL/ETA endorsement.