Federal Act
on Public Procurement
(PPA)

¹ The in­vit­a­tion pro­ced­ure ap­plies to pub­lic con­tracts out­side the scope of in­ter­na­tion­al treat­ies in ac­cord­ance with the thresholds in An­nex 4.

² In the in­vit­a­tion pro­ced­ure, the con­tract­ing au­thor­ity in­vites the ten­der­ers of its choice to sub­mit tenders without launch­ing a pub­lic in­vit­a­tion to tender. It pre­pares tender doc­u­ment­a­tion for this pur­pose. If pos­sible, at least three tenders are ob­tained.

³ An in­vit­a­tion pro­ced­ure without ob­serving the thresholds may be used for the pro­cure­ment of weapons, am­muni­tion, war ma­ter­i­al and, provided they are es­sen­tial for de­fence and se­cur­ity pur­poses, oth­er sup­plies of goods, con­struc­tion work, ser­vices and re­search or de­vel­op­ment ser­vices.