Any development project or activity authorized or approved pursuant to the provisions of this chapter shall be deemed certified by the commission as being in conformity with the coastal zone management program insofar as any such certification is requested by any federal agency pursuant to the Federal Coastal Zone Management Act of 1972 (16 U.S.C. 1451, et seq.), National Oceanic and Atmospheric Administration, and memoranda of understanding between the state and federal governments relative thereto.