The Environmental Clearance Certificate (ECC) is required by the Proponent for the Proposed Multiclient or Proprietary 3D Seismic Survey covering Blocks 1910B, 1910A, 2010A, 2011A, 2010B, 2011B, 2110B, 2110A, 2111A, 2111Bb, 2111Ba, and Parts of Blocks 1911, 1912B, 2012A, 2012B, 2112A, and, 2112B, Walvis Basin, Offshore Northcentral Namibia. The proposed survey area falls in water depths ranging from ca-500m to -4000m from east to west, respectively. The following is the general summary of the proposed 3D seismic survey activities with the detailed specification available from the Proponent on request (Figs. 1.2-1.6): Proposed activities - 3D seismic survey. Location -Blocks 1910B, 1910A, 201. Area of Interest covering (AOI): 75800 km². Seismic survey Water Depth of the main key target area - Ranges from ca-500m to ca-4000 m from east to west. Nearest Namibian Port -Port of Walvis Bay. Operating company - Searcher (Proponent). Survey vessel (s) - To be confirmed and multiple vessels (2) may be used. Type of Survey - 3D Streamers. Desired acquisition time - From January / February 2023 if ECC is granted, and. Estimated survey duration –Seventy (70) days per survey event. Seismic survey is a key tool that resources companies exploring for hydrocarbons (oil and natural gas) use to map the subsurface and kilometres below the ground on land (onshore) on in the sea (offshore). The basic principle of seismic survey method is the application of controlled generation of sound / acoustic waves by a seismic source to obtain an image of the subsurface. The generated acoustic wave that travels deep into the earth, is reflected by the various rock formations of the earth and returns to the surface where it is recorded and measured by receiving devices called hydrophones.