Engineering Branch, 1907-1976 (Boxes 1-294) - The records are files on Post Office accommodation facilities located across Canada and relate to new buildings, additions and alterations, leasing arrangements, etc., Transportation Branch, 1927-1976 (Boxes 295-301) - The records consist of files relating to vehicle purchases, coat of arms, highway service, air mail policy, orders, regulations and rulings, LaPalme Trucking, Montreal, railway mail clerks, railway mail and the Goldenberg report., Postal Rates and Classification Division, 1920-1975 (Box 302) - The records consist of files relating to the zoning of Toronto, householder mail weight and size limits, and forward mail., Administration Branch, 1893-1981 (Boxes 302-324) - The records consist of files relating to postal codes, crown corporation, correspondence from the office of the D.P.M.G., J.A.H. Mackay, liaison correspondence with the Canadian Union of Postal Workers and the Letter Carriers Union of Canada, mechanization, departmental organization, Royal Commission on Government Organization, Post Office legislation, uniforms, mail collection and delivery, die slugs, air mail, franking, group boxes, labour disputes (strikes), royal visits, railway mail clerks, political partisanship, and Newfoundland Post Office., Postal Rates and Classification, 1914-1986 (Boxes 325-340) - The records consist of files relating to departmental organization, mailing regulations, five day week mail policy, postage rates, orders, regulations and rulings, C.O.D. service, franking, foreign exchange, one delivery per day, "Royal Mail", bulk mailing, registered mail, third class mail, the Universal Postal Union, parcel post, air mail service rates, and steamship mail., Corporate Planning, c.1970s (Boxes 341-346) - The files relate to Crown Corporation and to Priority Post service., Plans, c.1960-1980s (Boxes 347-351) - The files consist of standard plans and mechanical drawings relating to Post Office buildings and terminals across Canada., Administration Branch, 1963-1981 (Boxes 352-355) - The files relate to departmental organization, the Toronto MAPP project, systems and procedures, and to Crown Corporation status., Headquarters Directorate File Classification System, c.1950s-1970s (Boxes 356-458) - The files relate to various postal associations (Canadian Postmasters Association, Canada Union of Postal Workers, Canadian Union of Public Employees, Letter Carriers Union of Canada, Canadian Railway Mail Clerks Federation, Council of Postal Unions), personnel classification, Royal Commissions of enquiry, Transportation Branch services (air mail service - contracts, trans-Atlantic mail, "All-up" service, routings), land mail (city services, letter carrier delivery, rural services), and general Post Office subject files (Parliament Hill, northern Canada, strikes, stamp vending machines, suburban services, service evaluation and improvement programs, sorting and despatching, household mailings, third class mail, mechanization, letter carrier delivery, zoning, and assured mail., Postmastership Files, 1949-1969 (Boxes 459-461) - The records are Postmastership files relating to Post Offices in Newfoundland.
