2.4 Data Exchange 



The Committee is responsible for assuring exchange of data between governments. The exchange of 

 monitoring information was initiated in the first quarter of 1 98 1 and was an expansion of the informal 

 quarterly exchange program initiated between the United States and Canada in 1976. Until 1991, data 

 were exchanged on a quarterly basis. At the request of the Committee, the United States and Canada 

 agreed to replace the quarterly exchange of data with an annual exchange effective at the beginning of 

 the 1992 calendar year. Henceforth, data will be exchanged once each year as soon after the end of the 

 calendar year as possible. However, unusual conditions or anomalous data will be reported and 

 exchanged whenever warranted. No unusual conditions occurred during 2003 which warranted special 

 reporting. 



