Federal Act
on Private International Law
(PILA)

¹ A mem­ber of the ar­bit­ral tribunal may be chal­lenged:¹⁴¹

a.

if they lack the qual­i­fic­a­tions agreed by the parties;

b.

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

c.¹⁴²

if cir­cum­stances ex­ist that give rise to le­git­im­ate doubt as to his or her in­de­pend­ence or im­par­ti­al­ity.

² A party may chal­lenge a mem­ber of the ar­bit­ral tribunal who has been ap­poin­ted by that party or in whose ap­point­ment that party has par­ti­cip­ated only on grounds that have come to their at­ten­tion after the ap­point­ment des­pite ex­er­cising due di­li­gence.¹⁴³

³ ...¹⁴⁴