Swiss Civil Procedure Code

¹A mem­ber of the ar­bit­ral tribunal may be chal­lenged:

a.

if he or she lacks the qual­i­fic­a­tions re­quired by the parties;

b.

if there is a ground for chal­lenge in ac­cord­ance with the rules of ar­bit­ra­tion ad­op­ted by the parties; or

c.

if there is reas­on­able doubt as to his or her in­de­pend­ence or im­par­ti­al­ity.

²If a party wishes to chal­lenge an ar­bit­rat­or who has been ap­poin­ted by that party or in whose ap­point­ment that party has par­ti­cip­ated, that party may do so only on grounds that have come to his or her at­ten­tion after the ap­point­ment. No­tice of the reas­on for the chal­lenge must be giv­en to the ar­bit­ral tribunal and the op­pos­ing party im­me­di­ately.