FSH 6509.13a - ASSISTANT DISBURSING OFFICER HANDBOOK 10/79 R-1 SUPPLEMENT 24 CHAPTER 20 - CHECKS 22 - SAFEKEEPING REQUIREMENTS. All safekeeping facilities must weigh at least 300 lbs. or be bolted or otherwise securely fastened to a wall or floor. Safekeeping facilities on casters or rollers must be securely fastened to wall or floor. All safekeeping facilities must be equipped with combination locks that meet or equal Underwriter Laboratory approved group 1 requirements. In order to meet this requirement, a lock must be manipulation proof, i.e., driver draw pin point cannot be felt or heard with an electronic listening device. While not required, it is recommended that the lock be constructed so that Forest Service personnel can easily change the combination. Each ADO must be provided with a separate locked compartment in a safekeeping facility that meets the above requirements. Blank ADO checks must be locked in safekeeping facility, except when ADO payrolling is in progress. If your current safekeeping facilities do not meet these requirements, in lieu of buying several safes, we recommend that you consider purchasing a security filing cabinet with separate independently controlled drawers. Each drawer should be equipped with a changeable combination lock. See FSC Class 7110 for available safekeeping facilities and prices.