Current business records of the Association are on file with the Executive Director, Montana Library Association, 510 Arbor, Missoula MT 59802. Association records of historical value are regularly deposited with the Montana Historical Society Library and Archives, 225 N. Roberts Street, Helena MT 59620-1201.
| Record | Retention Period |
| Constitution and bylaws | Permanent |
| Minutes and proceeding | Permanent |
| Lists of officers and members | Permanent |
| Publications (One record copy of all programs, journal, monographs, newsletters, brochures, posters and announcements) | Permanent |
| Ledgers and journals | Permanent |
| Audit Reports | Permanent |
| Applications filed with regulatory agencies | Permanent |
| Annual Reports | Permanent |
| Checks and bank statements | 9 years |
| Vouchers, cash and numerical copy | 9 years |
| Claims, closed, against the Association | 7 years |
| Correspondence and memoranda of historical interest | Permanent |