Def­i­n­i­tion of Bio­di­ver­sity Off­sets Bio­di­ver­sity Off­sets are defined as “mea­sur­able con­ser­va­tion out­comes result­ing from actions designed to com­pen­sate for sig­nif­i­cant resid­ual adverse bio­di­ver­sity impacts aris­ing from project devel­op­ment after appro­pri­ate pre­ven­tion and mit­i­ga­tion mea­sures have been taken”. [BBOP 2009]