Definition: Subject to authorization by the competent authorities, the access to the range of this class of MPAs is restricted to scientific research, survey or restocking; or entry is allowed, but prohibited from any conducts that may impact or damage the ecosystem, cultural heritages or natural features of the areas.
- Dongsha Atoll National Park –Marine Ecology Protected Area
- Kenting National Park –Marine Ecology Protected Area and Marine Designated Scenic Area and Sea Bottom Park
- Penghu Columnar Basalt Natural Reserve
- Xuhai Guanyinbi Natural Reserve
- Matsu Tern Refuge