Those not compulsorily insured include, in particular, persons affiliated to an official foreign old-age insurance scheme if taking out Swiss AVS insurance as well would represent an excessive financial burden.
参加外国养老和孤寡保险官方机构保险的人，如参加瑞士养老和孤寡保险对其构成重复保险的过重负担的话，则不必参加。