C Complete systematic land registration (cslr) in cikembar subdistrict plays an important role in accelerating the registration of all land parcels in cikembar, with the aim of reducing land ownership disputes. however, in reality, many obstacles are faced in its implementation. therefore, the research problem formulation is as follows: 1) how is the complete systematic land registration (cslr) carried out in cikembar subdistrict to ensure legal certainty? 2) what obstacles are faced by the land office of sukabumi regency in implementing complete systematic land registration (cslr) in cikembar subdistrict? the author uses a normative juridical research method, with a descriptive-analytical approach. the research relies on secondary data supported by primary data, which are then analyzed qualitatively. the research conclusions are drawn using deductive logic. the research findings are: 1) the cslr activities in cikembar subdistrict do not fully guarantee legal certainty. 2) obstacles such as limited quotas, inaccuracy in land measurements, and lack of socialization to the community and village officials. the use of satellite systems in measurement often produces inaccurate data. moreover, the limitations of human resources and job rotations at the national land agency (bpn) also affect the certificate issuance process. therefore, counseling and supervision are needed at every stage so that the implementation of cslr in cikembar subdistrict can provide optimal legal certainty to the community.