The Maritime Saftey and Security Department (MSSD) is primarily responsible for formulating and implementing policies on saftey and security in the maritime sector as well as management/development of shipping in Nigeria.

In addition, the Department is assigned the responsibility of supervising and coordinating the activities of Nigerian Maritime Administration and Safety Agency (NIMASA) and Maritime Academy of Nigeria, Oron, Akwa-Ibom State.

The Department relates with relevant international organizations notably, the International Maritime Organization (IMO), the Maritime Organization of West and Central Africa (MOWCA), International Seabed Authority (ISBA), the International Labour Organization (ILO) and Abuja MoU (Memorandum of Understanding on Ports State Control).
The Department has three (3) divisions, namely:
i. Maritime Safety and Security Division;
ii. Cabotage and Shipping Development Division; and
iii. Marine Pollution Division.
i. Formulating policies on maritime safety and security.

ii. Search and rescue issues

iii. Port state control activities

iv. Flag state control activities

v. Formulating policy on maritime pollution control

vi. Wreck and derelict removal

vii. Ship recycling policies

viii. Port security matters

ix. Shipbuilding and designFormulating policies and inspecting dockyards and ship repairs

x. Seafaring and seafarers policiesManpower development for maritime industryMarine accidents investigation and inquiry ( Marine Board Secretariat)

xi. Shipping finance subsidyShipping Development

xii. Domestication and implementation of safety conventions, protocols and amendments.

xiii. Technical co-operation on maritime safety and security.

xiv. Technical co-operation on maritime pollution

xi. Cabotage Vessel Finance Fund

xvi. Bilateral shipping services agreement;

xvii. Secretariat for MOWCA matters

xviii. Abuja MOU matters;

xix. Bilateral shipping services agreement;

xx. Relation with International Labour Organization (ILO);

xxi. Oil and ballast water matters;

xxii. Serves as the country’s focal point on International Maritime Organization (IMO) matters;

xxiii. Monitoring the implementation of Coastal and Inland Shipping (Cabotage) Act;

xxiv. Overseeing the management of the following Parastatals;

xxv. Nigerian Maritime Administartion and Safety Agency (NIMASA);

xxvi. Maritime Academy of Nigeria (MAN) Oron.