Undergraduate Major Codes

Last Updated: March 13, 2026 9:36:06 AM PDT

See a list of undergraduate major codes.

Note: Major codes preceded by a "D" require approval of the department for admittance to the major. See Selective and Screened Majors for additional information about department approval requirements. Historical major code information is available, look for the ISIS major code files under the Resources section.

Prospective students: See Undergraduate Majors for a list of majors and degrees.

Major Codes Chart
Department or program	D	ISIS Major code	TSS Major code	Major
Astronomy & Astrophysics	D	AT25	ASTR-BS-001	Astronomy & Astrophysics (B.S.)
Astronomy & Astrophysics	D	AT27	ASTR-BS-002	Astrophysical Sciences (B.S.)
Anthropology		AN27	ANTH-BA-003	Anthropology (Concentration in Archaeology)
		AN26	ANTH-BA-002	Anthropology (Concentration in Biological Anthropology)
		AN28	ANTH-BA-004	Anthropology (Concentration in Sociocultural Anthropology)
		AN30	ANTH-BA-005	Anthropology with a Concentration in Climate Change and Human Solutions
		AN29	ANTH-BS-001	Biological Anthropology
		AN31	ANTH-BS-002	Environmental Anthropology
Bioengineering	D	BE25	BENG-BS-001	Bioengineering
	D	BE28	BENG-BS-004	Bioengineering (Bioinformatics)
	D	BE29	BENG-BS-005	Bioengineering: BioSystems
	D	BE27	BENG-BS-003	Bioengineering (Biotechnology)
Biology				*Available to students admitted to UCSD in Fall 2018 or later*
	D	BI34	BIOL-BS-007	Biology with Specialization in Bioinformatics
	D	BI30	BIOL-BS-003	Ecology, Behavior, and Evolution
	D	BI31	BIOL-BS-004	General Biology
	D	BI35	BIOL-BS-008	Human Biology
	D	BI32	BIOL-BS-005	Microbiology
	D	BI37	BIOL-BS-010	Molecular and Cell Biology
	D	BI38	BIOL-BS-011	Neurobiology
				*Available to students admitted to UCSD in Fall 2017 or earlier*
	D	BI34	BIOL-BS-007	Biology with Specialization in Bioinformatics
	D	BI30	BIOL-BS-003	Ecology, Behavior, and Evolution
	D	BI31	BIOL-BS-004	General Biology
	D	BI35	BIOL-BS-008	Human Biology
	D	BI32	BIOL-BS-005	Microbiology
Black Diaspora and African American Studies		AA25	AAS-BA-001	Black Diaspora and African American Studies
Chemical Engineering	D	CE25	CENG-BS-001	Chemical Engineering
Chemistry and Biochemistry		CH38	CHEM-BS-014	Biochemistry
		CH25	CHEM-BS-001	Chemistry
		CH34	CHEM-BS-010	Environmental Chemistry
		CH36	CHEM-BS-012	Molecular Synthesis
		CH35	CHEM-BS-011	Pharmacological Chemistry
Chicanx and Latinx Studies		CX25	CLX-BA-001	Chicanx and Latinx Studies
Chinese Studies		CN25	CHIN-BA-001	Chinese Studies
Cinematic Arts		CI25	CINE-BA-001	Cinematic Arts
Classical Studies		CL25	CLAS-BA-001	Classical Studies
Cognitive Science		CG25	COGS-BA-001	Cognitive Science (B.A.)
		CG25	COGS-BS-001	Cognitive Science (B.S.)
		CG32	COGS-BS-008	Cognitive and Behavioral Neuroscience
		CG31	COGS-BS-007	Cognitive Science with a Specialization in Clinical Aspects of Cognition
		CG33	COGS-BS-009	Cognitive Science with a Specialization in Design and Interaction
		CG34	COGS-BS-010	Cognitive Science with a Specialization in Language and Culture
		CG35	COGS-BS-011	Cognitive Science with a Specialization in Machine Learning and Neural Computation
		CG29	COGS-BS-005	Cognitive Science with a Specialization in Neuroscience
College Honors Programs	D	UN52	TMC-HONOR	Marshall College Honors Program
College Honors Programs	D	UN52	ERC-HONOR	Roosevelt Coll Honors Program
Communication		CM26	COMM-BA-003	Communication
Communication		CM28	COMM-BA-005	Media Industries and Communication
Computer Science and Engineering	D	CS25	CSE-BS-001	Computer Engineering (See also Electrical and Computer Engineering EC26)
	D	CS26	CSE-BS-002	Computer Science (B.S.)
	D	CS27	CSE-BS-003	Computer Science with a Specialization in Bioinformatics
	D	CS29	CSE-BS-004	Artificial Intelligence
Critical Gender Studies		CR25	CGS-BA-001	Critical Gender Studies
Data Science	D	DS25	DSC-BS-001	Data Science
Economics		EN30	ECON-BS-003	Business Economics
		EN25	ECON-BA-001	Economics (B.A.)
		EN31	ECON-BS-004	Economics (B.S.)
	D	EN29	ECON-BA-005	Economics-Public Policy (B.A./MPP only)
		EN28	ECON-BS-002	Joint Major in Mathematics and Economics
Education Studies		ED25	EDS-BS-001	Education Sciences
Electrical and Computer Engineering	D	EC26	ECE-BS-001	Computer Engineering (see also Computer Science and Engineering CS25)
	D	EC27	ECE-BS-002	Electrical Engineering
	D	EC28	ECE-BS-003	Engineering Physics
	D	EC37	ECE-BA-003	Electrical Engineering & Society (B.A.)
Environmental Systems		ES25	ESYS-BS-001	Environmental Systems (Earth Sciences)
		ES26	ESYS-BS-002	Environmental Systems (Ecology, Behavior, and Evolution)
		ES27	ESYS-BS-003	Environmental Systems (Environmental Chemistry)
		ES28	ESYS-BA-001	Environmental Systems (Environmental Policy)
Ethnic Studies		ET25	ETHN-BA-001	Ethnic Studies
German Studies		GS25	GMST-BA-001	German Studies - Admissions Paused through Spring 2028
Global Health		GH25	GLBH-BA-001	Global Health (B.A.)
Global Health		GH26	GLBH-BS-001	Global Health (B.S.)
Global South Studies		GL25	GSS-BA-001	Global South Studies - Admissions Paused through Spring 2029
Herbert Wertheim School of Public Health and Human Longevity Science	D	PB25	SPH-BS-002	Public Health
	D	PB26	SPH-BS-003	Public Health with Concentration in Biostatistics
	D	PB27	SPH-BS-004	Public Health with Concentration in Climate and Environmental Sciences
	D	PB28	SPH-BS-005	Public Health with Concentration in Community Health Sciences
	D	PB29	SPH-BS-006	Public Health with Concentration in Epidemiology
	D	PB30	SPH-BS-007	Public Health with Concentration in Health Policy and Management Sciences
	D	PB31	SPH-BS-008	Public Health with Concentration in Medicine Sciences
History		HI25	HIST-BA-001	History
Human Developmental Sciences		HS25	HDS-BA-003	Human Developmental Sciences (B.A.)
		HS26	HDS-BS-002	Human Developmental Sciences (B.S.)
		HS27	HDS-BS-003	Human Developmental Sciences with a Specialization in Equity and Diversity
		HS28	HDS-BS-004	Human Developmental Sciences with a Specialization in Healthy Aging
Individual Studies	D	IN33	EIGH-BA-001	Eighth College Individual Studies
	D	IN27	ERC-BA-001	Eleanor Roosevelt College Individual Studies
	D	IN25	MUIR-BA-001	Muir College Special Project Major
	D	IN26	REV-BA-001	Revelle College Individual Major (B.A.)
	D	IN26	REV-BS-001	Revelle College Individual Major (B.S.)
	D	IN29	TMC-BA-001	Thurgood Marshall College Individual Studies
	D	IN28	WARR-BA-001	Warren College Individual Studies (B.A.)
	D	IN28	WARR-BS-001	Warren College Individual Studies (B.S.)
	D	IN30	SXTH-BA-001	Sixth College Individual Studies
	D	IN32	SEV-BA-001	Seventh College Individual Studies
International Studies		IS25	INTL-BA-001	International Studies — Anthropology
		IS26	INTL-BA-002	International Studies — Economics
		IS27	INTL-BA-003	International Studies — History
		IS28	INTL-BA-004	International Studies — Linguistics
		IS29	INTL-BA-005	International Studies — Literature
		IS30	INTL-BA-006	International Studies — Political Science
		IS31	INTL-BA-007	International Studies — Sociology
	D	IS32	INTL-BA-008	International Studies — Economics (Jt BA/MIA)
	D	IS33	INTL-BA-009	International Studies — Political Science (Jt BA/MIA)
		IS34	INTL-BA-010	International Studies — International Business
	D	IS35	INTL-BA-011	International Studies — International Business (Jt BA/MIA)
		IS36	INTL-BA-012	International Studies — Philosophy
Italian Studies		IT25	ITAL-BA-001	Italian Studies - Admissions Paused through Spring 2028
Japanese Studies		JA25	JAPN-BA-001	Japanese Studies
Jewish Studies		JS25	JWSP-BA-001	Jewish Studies
Latin American Studies		LA25	LATI-BA-001	Latin American Studies
		LA26	LATI-BA-002	Latin American Studies with a Concentration in Mexico
		LA27	LATI-BA-003	Latin American Studies with a Concentration in Migration and Border Studies
Linguistics		LN33	LING-BA-009	Language Studies
		LN25	LING-BA-001	Linguistics
		LN32	LING-BA-008	Linguistics (Specialization in Cognition and Language)
		LN29	LING-BA-005	Linguistics (Specialization in Language and Society)
		LN34	LING-BA-010	Linguistics (Specialization in Speech and Language Sciences)
Literature		LT42	LIT-BA-017	Literary Arts
		LT36	LIT-BA-011	Literatures in English
		LT33	LIT-BA-008	Spanish Literature
		LT41	LIT-BA-016	World Literature and Culture
Mathematics		MA33	MATH-BS-005	Joint Major Mathematics & Economics
		MA36	MATH-BS-008	Mathematical Biology
		MA29	MATH-BS-002	Mathematics
		MA27	MATH-BS-001	Mathematics (Applied)
		MA31	MATH-BS-004	Mathematics — Applied Science
		MA30	MATH-BS-003	Mathematics — Computer Science
		MA32	MATH-BA-007	Mathematics — Secondary Education
		MA35	MATH-BS-007	Probability & Statistics
Mechanical and Aerospace Engineering	D	MC25	MAE-BS-001	Aerospace Engineering
	D	MC37	MAE-BS-013	Aerospace Engineering with a Specialization in Aerothermodynamics
	D	MC36	MAE-BS-012	Aerospace Engineering with a Specialization in Astrodynamics and Space Applications
	D	MC35	MAE-BS-011	Aerospace Engineering with a Specialization in Flight Dynamics and Controls
	D	MC27	MAE-BS-003	Mechanical Engineering
	D	MC34	MAE-BS-010	Mechanical Engineering with a Specialization in Controls and Robotics
	D	MC33	MAE-BS-009	Mechanical Engineering with a Specialization in Fluid Mechanics and Thermal Systems
	D	MC32	MAE-BS-008	Mechanical Engineering with a Specialization in Materials Science and Engineering
	D	MC31	MAE-BS-007	Mechanical Engineering with a Specialization in Mechanics of Materials
	D	MC30	MAE-BS-006	Mechanical Engineering with a Specialization in Renewable Energy and Environmental Flows
Music
		MU27	MUS-BA-003	Interdisciplinary Computing and the Arts
		MU25	MUS-BA-001	Music
		MU26	MUS-BA-002	Music Humanities
Nanoengineering		NA25	NENG-BS-001	Nanoengineering
Philosophy		PL25	PHIL-BA-001	Philosophy
Physics
		PY35	PHYS-BA-006	Physics (B.A.)
		PY29	PHYS-BS-004	Physics (B.S.)
Political Science		PS25	POLI-BA-001	Political Science
		PS26	POLI-BA-002	Political Science/American Politics
		PS27	POLI-BA-003	Political Science/Comparative Politics
		PS28	POLI-BA-004	Political Science/International Relations
		PS29	POLI-BA-005	Political Science/Political Theory
		PS30	POLI-BA-006	Political Science/Public Law
		PS31	POLI-BA-007	Political Science/Public Policy
		PS32	POLI-BS-001	Political Science/Data Analytics
	D	PS33	POLI-BA-008	Political Science/International Affairs (B.A./MIA only)
		PS34	POLI-BA-009	Political Science/Race, Ethnicity, and Politics
Psychology		PC25	PSYC-BA-001	Psychology (B.A.)
		PC26	PSYC-BS-001	Psychology (B.S.)
		PC28	PSYC-BS-002	Psychology with a Specialization in Clinical Psychology
		PC29	PSYC-BS-003	Psychology with a Specialization in Cognitive Psychology
		PC30	PSYC-BS-004	Psychology with a Specialization in Developmental Psychology
		PC31	PSYC-BS-005	Psychology with a Specialization in Human Health
		PC32	PSYC-BS-006	Psychology with a Specialization in Sensation and Perception
		PC33	PSYC-BS-007	Psychology with a Specialization in Social Psychology
		PC34	PSYC-BS-008	Cognitive and Behavioral Neuroscience
		PC35	PSYC-BS-009	Business Psychology
Religion, Program for the Study of		RE26	RELI-BA-002	Study of Religion
Russian and Soviet Studies		RU26	RUSS-BA-002	Russian, East European and Eurasian Studies
Scripps Institution of Oceanography		SI31	SIO-BS-019	Geosciences
		SI29	SIO-BS-017	Marine Biology
		SI30	SIO-BS-018	Oceanic and Atmospheric Sciences
	D	SI32	SIO-BS-020	Oceanic and Atmospheric Science - Public Policy (B.S./MPP only)
Sociology		SO25	SOC-BA-001	Sociology
		SO27	SOC-BA-003	Sociology-American Studies
		SO28	SOC-BA-004	Sociology-Culture and Communication
		SO29	SOC-BA-005	Sociology-Economy and Society
		SO30	SOC-BA-006	Sociology-International Studies
		SO31	SOC-BA-007	Sociology-Law and Society
		SO32	SOC-BA-008	Sociology-Science and Medicine
		SO33	SOC-BA-009	Sociology-Social Inequality
Structural Engineering	D	SE27	SE-BS-003	Structural Engineering
	D	SE29	SE-BS-005	Structural Engineering with a Specialization in Aerospace Structures
	D	SE28	SE-BS-004	Structural Engineering with a Specialization in Civil Structures
	D	SE30	SE-BS-006	Structural Engineering with a Specialization in Geotechnical Engineering
	D	SE31	SE-BS-007	Structural Engineering with a Specialization in Structural Health Monitoring/Non-Destructive Evaluation
Theatre and Dance		TH27	THEA-BA-003	Dance
Theatre and Dance		TH26	THEA-BA-002	Theatre
Undeclared		UN27	SPPR-NON-004	Undeclared
		UNHA	SPPR-NON-036	Undeclared — Humanities/ Arts
		UNPS	SPPR-NON-037	Undeclared — Physical Sciences
		UNSS	SPPR-NON-038	Undeclared — Social Sciences
Urban Studies and Planning		US26	USP-BA-003	Urban Studies and Planning
Urban Studies and Planning		US27	USP-BS-001	Real Estate and Development
Visual Arts
		VA29	VIS-BA-005	Interdisciplinary Computing and the Arts
		VA26	VIS-BA-002	Visual Arts (Art History/ Criticism)
		VA27	VIS-BA-003	Visual Arts (Media)
		VA28	VIS-BA-004	Visual Arts (Studio)
		VA30	VIS-BA-006	Speculative Design

For more information, contact the Registrar's Office, (858) 534-3150.