agreement form exchang letter extens durat interim agreement trade trade relat measur european econom commun european coal steel commun part republ poland part letter commun sir europ agreement establish associ european commun member state part republ poland part sign brussel decemb entri forc europ agreement approv contract parti accord procedur requir pend complet abovement formal parti sign decemb interim agreement european econom commun european coal steel commun part republ poland part set provis europ agreement relat trade trade relat measur order ensur swift implement provis interim agreement enter forc march articl interim agreement appli entri forc europ agreement sign decemb latest decemb ratif procedur complet novemb entri forc europ agreement guarante order avoid disrupt trade relat parti establish interim agreement parti agre amend articl interim agreement delet part read latest decemb understood extens durat includ extens exchang letter declar annex final act interim agreement agreement form exchang letter enter forc dai receipt answer grate confirm govern agreement content letter accept sir assur highest consider council commiss european commun gt refer film gt letter republ poland sir honour acknowledg receipt letter bear todai date content europ agreement establish associ european commun member state part republ poland part sign brussel decemb entri forc europ agreement approv contract parti accord procedur requir pend complet abovement formal parti sign decemb interim agreement european econom commun european coal steel commun part republ poland part set provis europ agreement relat trade trade relat measur order ensur swift implement provis interim agreement enter forc march articl interim agreement appli entri forc europ agreement sign decemb latest decemb ratif procedur complet novemb entri forc europ agreement guarante order avoid disrupt trade relat parti establish interim agreement parti agre amend articl interim agreement delet part read quot latest decemb quot understood extens durat includ extens exchang letter declar annex final act interim agreement agreement form exchang letter enter forc dai receipt answer grate confirm govern agreement content letter honour confirm govern agreement content letter accept sir assur highest consider govern republ poland gt refer film gt