Between 1950 and 1970, the Public Archives of Canada (P.A.C.)installed in the federal administration a strong records nianagement system.Itwas largely based on the cooperation of the records managers active in mostdepartments. The first action of the P.A.C. was the construction of a . records centre, a building where departments could deposit the records which They rarely used but they wished to keep. The Public Archives was seen as offering their services rather than imposing directives. The second action was to organize training courses for theriiore sênior managers of records in the government. The benefits were two-fold: between informed managers, anda friendlier relations between P.A.C. and records managers. The third was to enlist the active particpatícn of managers in the creation of the new system, regulations, procedures and manualç. The fourth was to define the respective duties and responsibilites of the departments, the Public Archives and theTreasiiry Board. The implementation was long, but amicable and effective adaptationu and improvements are a continuing process.