▁state . ▁ ▁However , ▁under ▁United ▁States ▁constitution al ▁law , ▁executive ▁agre ements ▁are ▁not ▁considered ▁treat ies ▁for ▁the ▁purpose ▁of ▁the ▁Tre aty ▁Cla use ▁of ▁the ▁United ▁States ▁Constitution , ▁which ▁requires ▁the ▁advice ▁and ▁consent ▁of ▁two - third s ▁of ▁the ▁Senate ▁to ▁qual ify ▁as ▁a ▁treat y . ▁ ▁Some ▁other ▁nations ▁have ▁similar ▁prov isions ▁with ▁regard ▁to ▁the ▁rat ification ▁of ▁treat ies . ▁ ▁In ▁general ▁Executive ▁agre ements ▁are ▁often ▁used ▁in ▁order ▁to ▁by pass ▁the ▁requirements ▁of ▁national ▁constitution s ▁for ▁rat ification ▁of ▁treat ies . ▁ ▁Many ▁nations ▁that ▁are ▁republic s ▁with ▁written ▁constitution s ▁have ▁constitution al ▁rules ▁about ▁the ▁rat ification ▁of ▁treat ies . ▁ ▁The ▁Organ ization ▁for ▁Security ▁and ▁Co - operation ▁in ▁Europe ▁is ▁based ▁on ▁executive ▁agre ements . ▁ ▁In ▁the ▁United ▁States ▁In ▁the ▁United ▁States , ▁executive ▁agre ements ▁are ▁binding ▁intern ation ally ▁if ▁they ▁are ▁negoti ated ▁and ▁entered ▁into ▁under ▁the ▁president ' s ▁authority ▁in ▁foreign ▁policy , ▁as ▁commander - in - ch ief ▁of ▁the ▁armed ▁forces , ▁or ▁from ▁a ▁prior ▁act ▁of ▁Congress . ▁ ▁For ▁instance , ▁as ▁commander - in - ch ief ▁the ▁president ▁negoti ates ▁and ▁enters ▁into ▁status ▁of ▁forces ▁agre ements ▁( SO F As ), ▁which ▁govern ▁the ▁treatment ▁and ▁disposition ▁of ▁U . S . ▁forces ▁station ed ▁in ▁other ▁nations . ▁The ▁president ▁cannot , ▁however , ▁enter