The Office of Student Affairs and Development Services (OSADS), previously known as the Office of Student Support Services (OSSS), is a key institution for student leaders, civilians, and the like at Catanduanes State University (CatSU).

It is responsible for planning, organizing, implementing, and evaluating all university-wide events and activities conducted by recognized student body organizations, their sub-organizations, student publications, religious and social organizations, fraternities, and sororities, with guidance and approval from its Director.

Furthermore, the Office serves as a co-implementer of the university's rules and conduct, including conformity to the proper/prescribed university uniform, proper grooming, student discipline and conduct in relation to the mandate of the student handbook, and other implementing rules and regulations related to student welfare and decency.

The Office also selects, screens, and awards outstanding student leaders and other meritorious individuals who have excelled in their collegiate studies.

Moreover, the Director plays a unique role in coordinating various student welfare activities across different colleges through respective deans/principals to encourage students to engage in social responsibility and foster a sense of belongingness.

The Office of Student Affairs and Development Services also promotes the discovery and development of students' cultural inclination and sports awareness through creative practices such as dance, drama, music, arts, and various athletic and online skills events.

For inquiries, concerns, and clarifications, please visit the Office of Student Affairs and Development Services located at the 1/F Administrative Building of Catanduanes State University during office hours; Monday – Friday, 8:00 AM – 5:00 PM.

You may also contact them through email addresses: catsuosss@gmail.com and osads@catsu.edu.ph, or by phone: +63970 2393 917.

Political

No.	Name of Organization	President	Adviser
1	Federated College Student Council	Hon. Angelo Piolo M. Laynes	Prof. Glenn Paul R. Lopez
2	College of Agriculture and Fisheries SBO (CAF SBO)	Ms. Glarmaine Ivy B. Tañalas	Prof. Joseph D. Tabiosas
3	College of Arts and Sciences SBO (CAS SBO)	Mr. Jefferson T. Omadto	Prof. Josephine V. Torrente
4	College of Business and Accountancy SBO (CBA SBO)	Ms. Hannah Jane T. Cassanova	Prof. Eliseo M. Somido Jr.
5	College of Education Student Organization (CESO)	Ms. Alliyah Dawn A. Tabor	Mr. Charles T. Tresmanio Jr.
6	Engineering SBO (ESBO)	Mr. Christian Paulo P. Marcos	Engr. Nanette Valeza
7	College of Health Sciences SBO (CHS SBO)	Mr. John Michael T. Abines	Prof. Julie Ann Vega
8	College of Information & Communications Technology CSC (CICT CSC)	Mr. Ronanj T. Molina	Prof. Aster Vivien C. Vargas
9	College of Industrial Technology SBO (CIT SBO)	Mr. Eduardo A. Ternida	Ms. Edmarie S. Buerano

Academic

No.	Name of Organization	President	Adviser
10	Agriculture Student Organization (ASO)	Ms. Genevieve Bailon	Prof. Jhomann U. Socito
11	Agribusiness Eco-Firm (AGRBUSECOSOC)	Mr. John Renniel Mapa	Prof. Fe M. Valledor
12	Fisheries Student Organization (FISO)	Mr. Francis N. Toltol	Ms. Recie B. Bonaos
13	Public Administration Student Of Eastern Seas (PASES)	Ms. Ma. Jocel Kate G. Teves	Dr. Rommel R. Regala
14	Mathematics Society	Mr. John Rey G. Soneja	Prof. Serelino T. Tasarra
15	Natural Science Society (NATUSOC)	Mr. Earl James T. Tolledo	Ms. Renee Daisy J. Avila
16	Biological Science Society (BIOSSOC)	Mr. Ryan G. Reyes	Ms. Maribel T. Ralla
18	Economics Society (ECOSOC)	Ms. Romelyn Ruth L. Idanan	Prof. Noel T. De Leon
18	Political Science Society (PSS)	MR. Richard Abenir	Prof. Kristine Anne T. Razal
19	Environmental Science Society (ENVISSOC)	Mr. Jericho T. Obierna	Mr. Reneirio J. Avila
20	Junior Finance Executives (JFINEX)	Ms. Steffi Pauline A. Panti	Ms. Maureen L. Manoguid
21	Junior Marketing Association (JMA)	Ms. Jona May S. Arnaiz	Ms. Rosemarie M. Lao
22	Young Entrepreneur's Society (YES)	Mr. Allan G. Tolledo	Ms. Ma. Gazel C. Briñes
23	Philippine Association of Students in Office Administration (PASOA)	Mr. Lawrence D. Tañon	Ms. Alice Rojas
24	Junior Philippine Institute of Accountants (JPIA)	Mr. Darcy Rinsfer B. Tabor	Ms. Michelle M. Candelaria
25	Future Physical Educators' Association (FPEA)	Mr. Michael John T. Rima	Mr. Mark Anthony R. Dalipe
26	Elementary Educators Of Tomorrow (EEDTO)	Mr. Jovenson B. Vitalicio	Dr. Leonor S. Turbolencia
27	Future Culture and Arts Educators' Association (FCAEA)	Ms. Janina D. Collantes	Dr. Jose Z. Tria
28	Future Mathematics Educators Association (FuMEA)	Mr. Marlon S. Soliveres	Prof. Eric V. Evangelista
29	Lingua Poetica Society (LPS)	Mr. Jeremy M. Gacula	Dr. Rosana S. Abundo
30	Samahang Nagpapakadalubhasa sa Filipino (SaNaFil)	Mr. Denver T. Aranda	Ms. April Grace Lazado-Maca
31	CatSU Koro Hubilyo Council (CatSU-KHC)	Mr. Bill Joemar F. Camacho	Dr. Jose Z. Tria
32	Social Studies Guild (S.S.G)	Mr. Nick Russel L. Ocray	Prof. Amy T. Moraña
33	Asociacion Dela Ejemplos (A.D.E)	Ms. Maria Joyce M. Tatel	Prof. Jowi B. Resayaga
34	Biological Science Educators Society (BioSES)	Ms. Shaira Nicole P. Taduran	Ms. Lyka B. Llabres
35	Institute of Computer Engineers of the Philippines.Student Edition - CSU Chapter (ICpEP.SE)	Ms. Agnes Angela T. Doblon	Engr. Lyndon T. Buenconsejo
36	United Architects of the Philippines Student Auxiliary (UAPSA)	Mr. Rommel C. Tagle	Ar. Jennylen R. Vargas
37	Philippine Institute of Civil Engineers (PICE)	Ms. Lilian Kaye I. Bernardo	Engr. Rene Constantine J. Avila
38	Fourth Year Engineering Student Association (FYESA)	Ms. Maryson Anne L. Tabuzo	Engr. Mark Lester D. Rojas
39	Nutrition and Dietetics Association (NDA)	Mr. Vince Ivan S. Avila	Ms. Mischelle L. Condeno
40	Philippine Nursing Students Association - Bicol Catanduanes Chapter (PNSA)	Ms. Solenn Angeleigh P. Tresmanio	Dr. Jay Aries T. Gianan
41	Mathematics Circle	Ms. Yaezhe Ann T. Burac	Ms. Rowena T. Tablate
42	Samahang Sentral ng Filipino (SSF)	Mr. Anthony M. Tatel	Mr. Jaime T. Amante Jr.
43	Central English Club (CEC)	Ms. Toni Rose D. Somido	Prof. Romeleen Go-Vela

Social

No.	Name of Organization	President	Adviser
44	Organized Reservists of Catanduanes State University School-Based National Service Reserve Corps Unit	Mr. Christian Jay B. Dogello	Prof. Emlyn M. Lanon
45	CatSU Peer Facilitators Club	Mr. Christian Jay B. Dogello	Ms. Janette O. Labayani
46	Catanduanes Knowledge Pantry (CKP)	Mr. John Edward E. Sabeniano	Dr. Adem Nalu V. Rubio
47	CatSU Debate Society	Ms. Francine May T. Tayo	Dr. Adem Nalu V. Rubio
48	The Karibangbang	Mr. Mack Neil T. Vital	Ms. Reashiela L. Khan
49	CatSU Central Women's Circle	Ms. Crystal Jayden E. Taperla	Ms. Reashiela L. Khan
50	CHS Women's Club	Ms. Crystal Jayden E. Taperla	Prof. Helen S. Romero
51	CAF Women's Club	Ms. Rica Apuyan	Prof. Fe M. Valledor
52	CHUMMS Women's Club	Ms. Therese Carmel D. Socito	Ms. Grace T. Marquez
53	CEA Women's Club	Ms. Ma. Melissa Joy V. Talion	Engr. Karen Joi P. Beo
54	CBA Women's Club	Ms. Ella May A. Casalla	Prof. Ma. Concepcion V. Marquez

Religious

No.	Name of Organization	President	Adviser
55	Talmids on the Move	Mr. Santos Bongon	Engr. Richmonilyn A. Salvador
56	Agape Generation	Mr. Adhrian Psalm M. Zuniga	Prof. Joel T. Olfindo
57	Solus Christus Ministry	Mr. Ryster J. Villarete	Ms. Julie Ann T. Vega
58	Missionary Families of Christ - Campus	Mr. Prince Orland R. Valeza	Atty. Gregorio M. Sarmiento Jr.
59	Adventist Ministry to College and University Students - Catanduanes State University Chapter	Ms. Miguela N. Abraham	Ms. Glenda L. De Blanco
60	CatSU Roman Catholic Campus Ministray	Ms. Rebecca L. Vera	Prof. Emlyn M. Lanon
61	Student Association for Catanduanes Exemplary	Mr. Roziel M. De Nava	Ms. Rosemarie M. Lao

Laboratory Schools

No.	Name of Organization	President	Adviser
62	Pupil Government Organization (PGO)	Ms. Sophia Denise T. Garcia	Ms. Lorena M. Villamor / Mr. Paulo I. Bernardino
63	CatSU Laboratory High Schools Student Body Organization	Ms. Ma. Rachelle M. Rojas	Mr. Kevin M. Escobido

Fraternities and Sororities

No.	Name of Organization	President	Adviser
64	Tau Gamma Phi/Tau Gamma Sigma	Mr. Frank Edzel Canon	Mr. Edsel Tacorda
65	Alpha Phi Omega Zeta Nu Chapter	Mr. John Paul T. Tuplano	Prof. Ma. Luz A. Floralde
66	Beta Sigma Fraternity and Sigma Beta Sorority	Mr. Juan Jaime V. Velchez	Prof. Amy T. Moraña
67	Alpha Kappa Rho International Humanitarian Service Fraternity	Mr. French E. Delos Santos	Prof. Ma. Concepcion V. Marquez

Publication

No.	Name of Organization	President	Adviser
68	CSU Statesman	Mr. Cyr Ernest T. Tevar	Mr. Francis John B. Templonuevo
69	The Cornerstone	Ms. Frances Louela Joyce C. Reyes	Engr. Morris U. Aquino
70	Daliwawa	Mr. Wilson T. Cabrera Jr.	Ms. April Grace Lazado-Maca