| | Date | Description | Location | Box | MSA Citation |
| Details | 1920-1979 | Chestertown Shoregas tariffs and correspondence; Delmarva Power and Light Co. | OR/06/07/009/S02 | 15 | T2454-1 |
| Details | 1930-1939 | PEPCO - cancelled tariffs; Choptank Electric Coop. - cancelled tariffs; Elkton Gas - cancelled tariffs | OR/06/07/008/S02 | 14 | T2454-2 |
| Details | 1933-1979 | 3532, 4610, 5884, 7275, 7672, 7734 | OR/06/06/030/S05 | | T2454-3 |
| Details | 1939-1940 | 4001-4222 | OR/06/06/041/S07 | | T2454-4 |
| Details | 1940 | 4226-4317 | OR/06/06/042/S07 | | T2454-5 |
| Details | 1940-1944 | 4324-4979 | OR/06/06/033/S06 | | T2454-6 |
| Details | 1941-1944 | 4363-4673 | OR/06/06/039/S07 | | T2454-8 |
| Details | 1941-1949 | 4369-5067 | OR/06/06/012/S02 | | T2454-9 |
| Details | 1942-1948 | 4529-5056 | OR/06/06/023/S04 | | T2454-10 |
| Details | 1945 | 4710-4784 | OR/06/06/038/S07 | | T2454-11 |
| Details | 1945-1947 | 4795-4968 | OR/06/06/024/S04 | | T2454-12 |
| Details | 1948-1953 | 4982-5435 | OR/06/06/015/S03 | | T2454-13 |
| Details | 1948-1963 | 5054-6377 | OR/06/06/036/S06 | | T2454-14 |
| Details | 1950-1951 | 5200-5268 | OR/06/06/035/S06 | | T2454-15 |
| Details | 1951-1955 | 5268-5660 | OR/06/06/021/S04 | 1 | T2454-16 |
| Details | 1951-1976 | 5268, 5292, 5829, 6060, 6485, 6984, 7432, 7443, 7450, 7457, 7460, 7461, 7484 | OR/06/06/014/S03 | | T2454-17 |
| Details | 1951-1975 | 5269, 5903, 6418, 6688, 7004, 7240, 7426 | OR/06/06/032/S06 | | T2454-18 |
| Details | 1951-1974 | 5296, 6947, 6984, 7344; Satellite Business Systems FCC tariff - cancelled | OR/06/07/001/S01 | 7 | T2454-19 |
| Details | 1955-1959 | 5661-5984 | OR/06/06/037/S07 | | T2454-20 |
| Details | 1959-1973 | 5984, 6836, 7237 | OR/06/06/048/S08 | 6 | T2454-21 |
| Details | 1962-1969 | 6252, 6519, 6439, 6836 | OR/06/06/045/S08 | 3 | T2454-22 |
| Details | 1963-1966 | 6379-6631 | OR/06/06/031/S06 | | T2454-23 |
| Details | 1965-1983 | 6519, 6836, 7344, 7506, 7530, 8063, 8127 | OR/06/06/046/S08 | 4 | T2454-24 |
| Details | 1967-1969 | 6688-6870 | OR/06/06/022/S04 | | T2454-25 |
| Details | 1969-1973 | 6890-7231 | OR/06/06/025/S05 | | T2454-26 |
| Details | 1971-1974 | 7004-7308 | OR/06/06/034/S06 | | T2454-27 |
| Details | 1973 | 7215 | OR/06/06/013/S03 | | T2454-28 |
| Details | 1973 | 7215 | OR/06/06/043/S08 | 1 | T2454-29 |
| Details | 1980-1982 | 7853, 7877-7878, 7893, 7965, 7967, 7969, 7986, 7998 | OR/06/06/011/S02 | | T2454-30 |
| Details | 1982-1983 | 8000, 8005, 8007, 8009, 8014, 8031, 8035, 8043, 8063,8072, 8075, 8080, 8089, 8093 | OR/06/06/044/S08 | 2 | T2454-31 |
| Details | 1983 | 8063 Phase III Item 25, Air Modeling Printout JRC | OR/06/06/016/S03 | 1 | T2454-32 |
| Details | 1983 | 8063 Phase III Item 25, Air Modeling Printout JRC | OR/06/06/017/S03 | 2 | T2454-33 |
| Details | 1983 | 8063 Phase III Item 25, Air Modeling Printout JRC | OR/06/06/018/S03 | 3 | T2454-34 |
| Details | 1983 | 8063 Phase III Item 25, Air Modeling Printout JRC | OR/06/06/019/S04 | 4 | T2454-35 |
| Details | 1983 | 8063 Phase III Item 25, Air Modeling Printout JRC | OR/06/06/020/S04 | 5 | T2454-36 |
| Details | 1983 | 8063 Phase III Item 1, Air Modeling Printout JRC 7 | OR/06/06/026/S05 | 1 | T2454-37 |
| Details | 1983 | 8063 Phase III Item 1, Air Modeling Printout JRC 7 | OR/06/06/028/S05 | 3 | T2454-39 |
| Details | 1983 | 8063 Phase III Item 1, Air Modeling Printout JRC 7 | OR/06/06/029/S05 | 4 | T2454-40 |
| Details | 1958 | Conowingo Power Company - cancelled tariffs; discontinued water companies | OR/06/07/002/S01 | 8 | T2454-41 |
| Details | 1971-1992 | Daily minutes | OR/06/06/040/S07 | | T2454-42 |
| Details | 1980-1989 | PEPCO tariffs | OR/06/07/011/S02 | 17 | T2454-43 |
| Details | 1983 | C&P Telephone Company - cancelled tariffs | OR/06/07/006/S01 | 12 | T2454-44 |
| Details | 1983 | C&P Telephone Company - cancelled tariffs | OR/06/07/007/S02 | 13 | T2454-45 |
| Details | 1984 | C&P Telephone Company - cancelled tariffs; Baltimore Gas and Electric - cancelled tariffs | OR/06/07/005/S01 | 11 | T2454-46 |
| Details | 1986 | GTE Sprint tariffs, FCC Nos. 10/11; US Transmission Systems Inc. MD PSC No. 2 - cancelled tariffs - FCC No. 2; Western Union cancelled tariffs; PSC MD Nos. 1-3 | OR/06/06/047/S08 | 5 | T2454-47 |
| Details | 1940-1979 | City of Hagerstown Electric tariffs, St. Michael's Utilities Comm., Somerset Rural Electric Cooperative, SMECO agreements and cancelled tariffs | OR/06/07/010/S02 | 16 | T2454-48 |
| Details | | Washington Gas Light Company - cancelled tariffs; discontinued water companies | OR/06/07/004/S01 | 10 | T2454-49 |
| Details | | Washington Gas Light Company - cancelled tariffs | OR/06/07/003/S01 | 9 | T2454-50 |