The vitality of the ocean as concerns navigation, mineral resource extraction, environmental protection and national security cannot be over emphasised. The strategic and indispensable importance of the ocean has resulted in conflicts between countries over its control. This is further exacerbated with the commencement and operationalisation of offshore mining. The practicality and legality in the exercise of jurisdiction in maritime zones such as the Exclusive Economic Zone and the Continental Shelf have been met with stiff resistance in some circumstances. This article therefore seeks to determine and evaluate the legal dispensations permitting Cameroon to legislate and enforce its national laws in the maritime zones beyond its territorial sovereignty. To effectively do this, this research adopts both the empirical and doctrinal research methodology, making use of both primary and secondary data. The legal and genetic methods were used to analyse the data. The research concludes that, the sovereign rights enjoyed by Cameroon over the Exclusive Economic Zone and the Continental Shelf are legally backed by both international and national laws. However, these rights are limited to exploration, exploitation, conservation and management of maritime resources, with third States enjoying some freedoms over these maritime zones. The freedoms include navigation, overflight, laying of submarine cables and pipelines within these maritime zones as long as these third States comply with the sovereign rights of the State of Cameroon. It is therefore recommended that, the existing sectoral laws adopted by Cameroon over these maritime zones should be rigorously implemented and enforced in order to ensure uniformity and compliance.