Office of Price Administration represents the largest portion of the sub-subseries and contains materials dated between 1942 and 1946. The Office of Price Administration was established within the Office of Emergency Management in 1941 and abolished in 1947. The role of the organization was to stabilize prices and rents by establishing maximum prices for commodities. The majority of the material in this sub-subseries concerns the stabilization of grocery prices. The sub-subseries contains materials including shipping lists, statutes, releases, price lists and adjustments, studies, surveys, reports, posters listing grocery prices, regulations, a grocer’s price book, a grocery price list card file, a variety of official opinions and decisions issued by the OPA compiled into post books, a small file of material on the black market, and worksheets used to compile OPA price bulletins. The sub-subseries also contains several interviews conducted by Ruby Norris, price analyst, with various businesses between 1943 and 1944.